- Methods and Projects
- Standards and Classifications
Standardised Methodological Report
Environmental Accounts: Air Emission Accounts
- 1Contact
- 1.1Contact organisation
National Statistics Institute of Spain
- 1.5Contact mail address
Avenida de Manoteras 50-52 - 28050 Madrid
- 1.1Contact organisation
- 2Metadata update
- 2.1Metadata last certified
15/11/2024
- 2.2Metadata last posted
15/11/2022
- 2.3Metadata last update
15/11/2024
- 2.1Metadata last certified
- 3Statistical presentation
- 3.1Data description
The Environmental Accounts (EA) are a synthesis statistical operation with the general objective of integrating environmental information in the central system of Spanish National Accounts, following the methodology of the United Nations' System of Environmental-Economic Accounting (SEEA), which constitutes the conceptual framework of the EA.
They include a group of satellite accounts compiled using accounting formats that are applicable to different sectorial and territorial scopes, with a great amount of physical data. Spanish National Accounts allow expanding the analysis of similar concepts, classifications and regulations without overloading the central system.
It is an essential tool for the analysis of the interrelation between the environment and the economy in general, and specifically, for the assessment of sustainable development through the design and construction of Sustainable Development Indicators, as well as monitoring political actions in terms of national and international environment.
The Air Emissions Accounts collect and present the data regarding the polluting emissions into the atmosphere, in a way that is compatible with the Spanish National Accounts system, registering the emitting agents, broken down by industry and Households sector as final consumers.
Estimates for the Air Emissions Accounts are carried out using the National Air Emissions Inventory, which is compiled by the Ministry for Ecological Transition and the Demographic Challenge (https://www.miteco.gob.es/es/calidad-y-evaluacion-ambiental/temas/sistema-espanol-de-inventario-sei-/) . These Inventories use for the calculation of atmospheric pollutants the IPCC and EMEP/EEA guidelines, according to NFR/CRF(Nomenclature for Reporting/Common Reporting Format), which groups emissions into sectors, categories and subcategories.
Air Emissions Accounts are compiled adapting the Inventory data to the classification based on NACE Rev.2 (plus the households sector as final consumers). Most part of inventory categories correspond to the only economic activity registered in a NACE branch, but in some cases emissions shall be divided into several branches (combustion plants, transport and other). Due to the fact that air emissions are distributed by industry, in compliance with the regulations of the Spanish National Accounts system, the emissions caused by secondary and auxiliary activities are grouped with the main activity of the economic units. In the households sector as final consumers, the direct emissions corresponding to their own transport, heating and other emissions of a secondary nature are considered.
- 3.2Classification system
- Clasificaciones utilizadas
The activities and sectors classifications that are used are coherent with the European System of Accounts (ESA)
Producers: The economic activities are classified according to the A*64 classification included in the Commission Regulation (EU) No. 715/2010, of 10 August 2010. The A*64 classification is the result of aggregating the divisions in NACE Rev. 2, which corresponds to CNAE2009 in the case of Spain.
Final consumers: Resident and non-resident households.
Air Pollutants:
CO2 - Carbon dioxide
N2 O - Nitrous oxide
CH4 - Methane
PFCs - Perfluorinated Compounds
HFCs - Hydrogenfluorocarbon compounds
SF6 - Sulphur hexaflouride
NOx - Nitrogen oxide
NMVOC - Non-methane volatile organic compounds
CO - Carbon monoxide
SOx - Sulphur oxides
NH3 - Ammonia
PM10 - Particulate matter of diameter less than or equal to 10 µm
PM2.5 - Particulate matter of diameter less than or equal to 2.5 µm
- Clasificaciones utilizadas
- 3.3Sector coverage
Air Emissions Accounts have the same limits as the European System of Accounts (ESA)
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32013R0549:ES:NOTAs the Spanish National Accounts, the Air Emissions Accounts also follow the residence principle. They therefore count air polluting emissions generated by the activities of all resident units, regardless of the geographical location where those emissions actually take place.
These accounts register the flows of gaseous and waste particulate matter in the air that come from the national economy. In reference to these accounts, the term «Air» refers to a component of the environmental system, and the system boundary is the border between the Spanish economy (as part of the economic system) and the air (as part of the environmental system); when the system boundary is crossed, the emitted substances are beyond human control and they become part of the natural cycles of the materials that may have diverse consequences on the environment.
Worldwide coverage of the Air Emissions Accounts and the Emissions Inventory is different due to the framework used in the first, which is the Spanish National Accounts system. This system only considers national economic activities (residence principle) whereas inventories present the emissions of all the sources in the national territory. Moreover, Air Emissions Accounts do not include emissions from non-economic agents (nature) nor the absorption of gases by nature (absorption of CO2). Hence, the emissions included in the Air Emissions Accounts are those generated by national economic activities (resident units), and the emissions of these units abroad, tourists and international transport companies that shall be included in the corresponding industry or in the households as final consumers. The emissions of non-resident units within the national border are excluded.
- 3.4Statistical concepts and definitions
- EMEP/CORINAIR
Methodology developed by the European Environmental Agency and the EMEP programme (European Monitoring and Evaluation Programme) from the Geneva Convention on Trans-Boundary Air Pollution:
- Institutional Unit
A basic economic-decision centre, characterised by uniform behaviour and autonomous decision-making in the exercise of its main function, grouped into institutional sectors (IS). They may be, for instance, a household, a company or a unit of the General Government.
- Local economic activity unit
A local economic activity unit is understood to be the part of a company that performs a given activity at a specific geographical location. The local activity unit is not subject to direct observation; it is an analytical unit whose data is obtained from the information collected on a company and industrial establishment level.
- National Atmospheric Emissions Inventory
Annual register of the air emissions, by source and the absorption of drains, of the greenhouse gases regulated by the Kyoto Protocol of the Framework Agreement on Climate Change, as well as other pollutants regulated by the Geneva Conference on Transborder Air Pollution and the National Emission Roofs Directive, in accordance with the international and community criteria and norms in force. It is prepared by the Ministry for Ecological Transition.
- Pollutant emissions included in the Air emission a
- Greenhouse effect
CO2 - Carbon dioxide
CH4 - Methane
N2O - Nitrous oxide
HFC - Hydrogenfluorocarbon compounds
PFC - Polyflourocarbon compounds
SF6 - Sulphur hexafluoride
- Acid rain or acidifiers
SOx - Sulphur oxides
NOx - Nitrogen oxides
NH3 - Ammonia"
- Ozone layer precursors
HFC - Hydrogenfluorocarbon compounds
PFC - Polyflourocarbon compounds
SF6 - Sulphur hexafluoride
CO - Carbon monoxide
- Photochemical contamination
NOx - Nitrogen oxides
COVNM - Volatile organic compounds (except methane)
- Particles
PM10 Particles with an aerodynamic diameter smaller than 10 micras
PM2.5 Particles with an aerodynamic diameter smaller than 2.5 micras - SNAP (Selected Nomenclature for Air Pollution)
This is the nomenclature that groups emissions functionally, by process, created by the European EMEP/CORINAIR group.
- EMEP/CORINAIR
- 3.5Statistical unit
As they are satellite accounts, the same units as in the Spanish National Accounts are used, that is, the units collected in the European System of Accounts (ESA).
For further information consult ESA:
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:32013R0549:ES:NOT - 3.6Statistical population
Environmental Accounts combine data from several different statistical sources. The concept of statistical population cannot be strictly applied in this context.
- 3.7Reference area
Environmental Accounts cover the entire national territory.
The Air Emissions Accounts must be consistent with the Spanish National Accounts. Spanish National Accounts define the national economy as the set of activities and transactions of the resident economic agents that focus on the economic national territory. Some transactions of these units are carried out outside of the national economic territory and other transactions within this territory are carried out by non-resident units. Therefore, in Air Emissions Accounts as well as Spanish National Accounts it is necessary to apply the residence principle. In agreement with this principle, the emissions generated by the units residing outside of the national territory shall be considered inputs of the national economy and the emissions generated by units not residing in the national economic territory shall be excluded from the accounting framework.
- 3.8Time coverage
Air Emission Accounts are compiled annually.
There is information for the 2008-2022 period, with the results of the year 2023 as early estimates. - 3.9Base period
Environmental Accounts shall be updated periodically so as to incorporate the appropriate methodological and statistical changes, specially the base changes of the economic accounts.
The results correspond to the 2024 Statistical Review, following the review of National Accounts.
- 3.1Data description
- 4Unit of measure
- 4.1Unit of measure
Tonnes, thousands of tonnes of equivalent CO2, tonnes of equivalent NO2, tonnes of equivalent SO2 and tonnes of equivalent NMVOC.
- 4.1Unit of measure
- 5Reference period
- 5.1Reference period
The accounting period is the natural year.
Data referred to the period: Anual A: 2022
- 5.1Reference period
- 6Institutional mandate
- 6.1Legal acts and other agreements
The compilation and dissemination of the data are governed by the Statistical Law No. 12/1989 "Public Statistical Function" of May 9, 1989, and Law No. 4/1990 of June 29 on “National Budget of State for the year 1990" amended by Law No. 13/1996 "Fiscal, administrative and social measures" of December 30, 1996, makes compulsory all statistics included in the National Statistics Plan. The National Statistical Plan 2009-2012 was approved by the Royal Decree 1663/2008. It contains the statistics that must be developed in the four year period by the State General Administration's services or any other entity dependent on it. All statistics included in the National Statistics Plan are statistics for state purposes and are obligatory. The National Statistics Plan 2021-2024, approved by Royal Decree 1110/2020, of 15 December, is the Plan currently implemented. This statistical operation has governmental purposes, and it is included in the National Statistics Plan 2021-2024. (Statistics of the State Administration).
European Parliament and Council Regulation (EU) No. 691/2011, of 6 July 2011, regarding the European economic environmental accounts, constitutes the reference framework of common accounting concepts, definitions, classifications and norms intended for the compilation of Environmental Accounts.
This regulation is available in:
https://www.ine.es/normativa/leyes/UE/minine.htm#30084The first reference year in which results are transmitted is the year in which the mentioned Regulation enters into force, 2011, with a first transmission which includes the data of the series from 2008 and in a period of 21 months since the reference year finishes. In each subsequent transmission of data to the Comission, the Member States will provide annual data for years n-4, n-3, n-2, n-1 and n, n being the reference year.
- 6.2Data sharing
The exchanges of information needed to elaborate statistics between the INE and the rest of the State statistical offices (Ministerial Departments, independent bodies and administrative bodies depending on the State General Administration), or between these offices and the Autonomic statistical offices, are regulated in the LFEP (Law of the Public Statistic Function). This law also regulates the mechanisms of statistical coordination, and concludes cooperation agreements between the different offices when necessary.
Environmental Accounts is a statistical operation included in the National Statistics Plan, therefore subject to the Law on the Public Statistical Function of 9 May 1989, hence its data is protected by Statistical Secrecy in all stages of its compilation
https://www.ine.es/dyngs/IOE/en/operacion.htm?id=1259942700133
- 6.1Legal acts and other agreements
- 7Confidentiality
- 7.1Confidentiality - policy
The Statistical Law No. 12/1989 specifies that the INE cannot publish, or make otherwise available, individual data or statistics that would enable the identification of data for any individual person or entity. Regulation (EC) No 223/2009 on European statistics stipulates the need to establish common principles and guidelines ensuring the confidentiality of data used for the production of European statistics and the access to those confidential data with due account for technical developments and the requirements of users in a democratic society
- 7.2Confidentiality - data treatment
INE provides information on the protection of confidentiality at all stages of the statistical process: INE questionnaires for the operations in the national statistical plan include a legal clause protecting data under statistical confidentiality. Notices prior to data collection announcing a statistical operation notify respondents that data are subject to statistical confidentiality at all stages. For data processing, INE employees have available the INE data protection handbook, which specifies the steps that should be taken at each stage of processing to ensure reporting units' individual data are protected. The microdata files provided to users are anonymised.
Environmental Accounts is a statistical operation included in the National Statistics Plan, therefore subject to the Law on the Public Statistical Function of 9 May 1989, hence its data is protected by Statistical Secrecy in all stages of its compilation
https://www.ine.es/dyngs/IOE/en/operacion.htm?id=1259942700133
- 7.1Confidentiality - policy
- 8Release policy
- 8.1Release calendar
The advance release calendar that shows the precise release dates for the coming year is disseminated in the last quarter of each year.
- 8.2Release calendar access
The calendar is disseminated on the INEs Internet website (Publications Calendar)
- 8.3User access
The data are released simultaneously according to the advance release calendar to all interested parties by issuing the press release. At the same time, the data are posted on the INE's Internet website (www.ine.es/en) almost immediately after the press release is issued. Also some predefined tailor-made requests are sent to registered users. Some users could receive partial information under embargo as it is publicly described in the European Statistics Code of Practice
- 8.1Release calendar
- 9Frequency of dissemination
- 9.1Frequency of dissemination
The data is disseminated annually.
- 9.1Frequency of dissemination
- 10Accessibility and clarity
- 10.1News release
The results of the statistical operations are normally disseminated by using press releases that can be accessed via both the corresponding menu and the Press Releases Section in the web
- 10.2Publications
Environmental Accounts users may access the data regarding Air Emissions Accounts via the INE website
- 10.3On-line database
INEbase is the system the INE uses to store statistical information on the Internet. It contains all the information the INE produces in electronic formats. The primary organisation of the information follows the theme-based classification of the Inventory of Statistical Operations of the State General Administration . The basic unit of INEbase is the statistical operation, defined as the set of activities that lead to obtaining statistical results on a determined sector or subject based on the individually collected data. Also included in the scope of this definition are synthesis preparation.
Access to tables and results in INEBASE (www.ine.es) / Physical variables and environment / Environmental accounts
http://ine.es/dyngs/INEbase/en/categoria.htm?c=Estadistica_P&cid=1254735976603
Number of queries to data tables AC1=29059
Number of queries to metadata AC2=1139
- 10.4Micro-data access
A lot of statistical operations disseminate public domain anonymized files, available free of charge for downloading in the INE website Microdata Section
Due to the nature of Environmental Accounts, there is no microdata available
- 10.5Other
The policy of the customised request service is to analyse if the statistical secrecy and significance conditions are met. After this analysis, a viability report is compiled and sent to the petitioner.
The requests will be carried out via the User information area:
- 10.6Documentation on methodology
The manuals compiled by EUROSTAT, "Manual for Air Emissions Accounts, 2015", and "Compilation Guide for Eurostat's Air Emissions Accounts, 2013" may be consulted in their website in the following link:
- 10.7Quality documentation
Fields 10.6 to 17 of this document are the quality report oriented to the user of this operation.
- 10.1News release
- 11Quality management
- 11.1Quality assurance
Quality assurance framework for the INE statistics is based on the ESSCoP, the European Statistics Code of Practice made by EUROSTAT. The ESSCoP is made up of 16 principles, gathered in three areas: Institutional Environment, Processes and Products. Each principle is associated with some indicators which make possible to measure it. In order to evaluate quality, EUROSTAT provides different tools: the indicators mentioned above, Self-assessment based on the DESAP model, peer review, user satisfaction surveys and other proceedings for evaluation.
Quality assurance framework for the INE statistics is based on the ESSCoP, the European Statistics Code of Practice made by EUROSTAT. The ESSCoP is made up of 16 principles, gathered in three areas: Institutional Environment, Processes and Products. Each principle is associated with some indicators which make possible to measure it. In order to evaluate quality, EUROSTAT provides different tools: the indicators mentioned above, Self-assessment based on the DESAP model, peer review, user satisfaction surveys and other proceedings for evaluation.
The quality of synthesis statistics such as the environmental accounts, is firstly derived from the multiple sources used. In all of them it has been intended to achieve the most accurate information possible, minimising the different types of error they may be affected by. On the other hand, the decisions of the corresponding regulations are followed when compiling this data.
- 11.2Quality assessment
The Commission (Eurostat) will assess the quality of the transmitted data and within a month after it is received may request additional information from the Member State regarding the data revised, as appropriate (Article 7.4 of European Regulation No. 691/2011) .
In the case of the Air Emissions Accounts, the quality of its estimates depends mainly on the primary data that make up the Emissions Inventory. The estimates of AEA are based on the methodology designed by Eurostat, using the principles, rules and classifications of national accounts, which ensures their internal consistency and with other modules of the environmental accounts (ej:Physical Energy Flows Account), as well as comparability with aggregates of national accounts.
- 11.1Quality assurance
- 12Relevance
- 12.1User needs
Environmental Accounts allow observing the pressure the economy puts on the environment and studies how to reduce it. They show interactions among the economy, households and environmental factors, and therefore offer more information than the Spanish National Accounts in this field.
As an essential source of environmental data, they are basic for environmental politics decision-making and the development of impact assessment at a national and international level. According to the Sustainable Development principles included in the European Green Deal and other initiatives, as well as the advance towards a low-emissions economy that is efficient in the use of resources, it is becoming more and more necessary to develop and implement a data framework structure that systematically includes the environmental and economic data. Moreover, since they constitute a synthesis statistical operation in the environmental field, they allow identifying gaps and improvements in the Spanish statistical system.
Among the Environmental Accounts users are the following:
• Ministries, Spanish National Central Bank and other public institutions
• Territorial Administrations (Autonomous Communities)
• Researchers and Academic institutions
• Non-profit companies and institutions (Company research services, foundations, associations, etc.), trade unions and employers' organisations.
• Press and specialised mediaSimilarly, there are foreign institutional users (Eurostat, OECD, United Nations, etc.)
- 12.2User satisfaction
The INE has carried out general user satisfaction surveys in 2007, 2010, 2013, 2016 and 2019 and it plans to continue doing so every three years. The purpose of these surveys is to find out what users think about the quality of the information of the INE statistics and the extent to which their needs of information are covered. In addition, additional surveys are carried out in order to acknowledge better other fields such as dissemination of the information, quality of some publications...
On the INE website, in its section Methods and Projects / Quality and Code of Practice / INE quality management / User surveys are available surveys conducted to date.(Click next link)
In the User Satisfaction Surveys carried out to date, the Environment sector in which the statistical operation is encompassed is assessed, which can guide as to what the users' opinion is.
- 12.3Completeness
Air Emissions Accounts meet the information requirements demanded by the European Parliament and Council Regulation (EU) No. 691/2011, of 6 July 2011, regarding European Environmental Economic Accounts, therefore they are exhaustive.
The rate of compulsory statistical results that are available is of 100% (R1 = 100%)
- 12.1User needs
- 13Accuracy and reliability
- 13.1Overall accuracy
Environmental Accounts are synthesis statistics, therefore they are affected by sampling errors coming from sources from which information is collected, which are analysed in order to see if they remain within reasonable limits. Non-sampling errors may come from the sources or from the information treatment of this operation (lack of coverage, measurement errors). In summary, direct measurement of accuracy in this case is not applicable.
The main instrument for analysing the accuracy is the analysis of the revisions. The revisions show the degree of proximity between subsequent estimators of the same value, and it is reasonable to assume that the estimators converge on the true value when they are based on better and more reliable data.
See 17.2
- 13.2Sampling error
Environmental Accounts are synthesis statistics, therefore they are affected by sampling errors coming from sources from which information is collected, which are analysed in order to see if they remain within reasonable limits.
- 13.3Non-sampling error
Environmental Accounts are synthesis statistics, therefore non-sampling errors may come from the sources or from the information treatment of this operation (lack of coverage, measurement errors).
- 13.1Overall accuracy
- 14Timeliness and punctuality
- 14.1Timeliness
Air Emissions Accounts estimates are sent to EUROSTAT within 21 months after the reference year finishes, in compliance with the European Regulation 691/2011 regarding European Environmental Economic Accounts, in which data transmission periods are regulated.
The indicator of the time elapsed between the end of the reference period and dissemination in INEBase is TP1=11 months.
Air Emissions Accounts are revised every year due to the Emissions Inventory is updated for all the years
TP2= N/A
- 14.2Punctuality
The Environmental Accounts results are published following the INE Structural Statistics Availability Calendar. TP3 = 100%
https://www.ine.es/daco/daco41/calen.htm#temas
- 14.1Timeliness
- 15Coherence and Comparability
- 15.1Comparability - geographical
The EU Member States use the same methodology for the compilation of estimates, which allows comparability among Air Emissions Accounts estimates.
- 15.2Comparability - over time
The basic methodology for the compilation of the estimates has not changed since the first estimates of Emissions Accounts as a pilot study, although the new accounting standard is compatible with the the 2019 Statistical Review (SEC 2010) of National Accounts, having reviewed all the available accounting series.
Therefore, the number of comparable elements of the time series since its last break is 15 (CC2 = 15)
- 15.3Coherence - cross domain
Environmental Accounts are coherent with Spanish National Accounts.
- 15.4Coherence - internal
The annual results of the Air Emissions Accounts are coherent among each other, and in relation with the the available annual series
- 15.1Comparability - geographical
- 16Cost and burden
- 16.1Cost and burden
In the 2024 annual Program, the estimate of the necessary budget appropriation to finance this Environmental Accounts operation is 23,35 thousand euros.
There is no burden on respondents, since the information provided by other statistics is used.
- 16.1Cost and burden
- 17Data revision
- 17.1Data revision - policy
The INE of Spain has a policy which regulates the basic aspects of statistical data revision, seeking to ensure process transparency and product quality. This policy is laid out in the document approved by the INE board of directors on 13 March of 2015, which is available on the INE website, in the section "Methods and projects/Quality and Code of Practice/INE’s Quality management/INE’s Revision policy" (link).
This general policy sets the criteria that the different type of revisions should follow: routine revision- it is the case of statistics whose production process includes regular revisions-; more extensive revision- when methodological or basic reference source changes take place-; and exceptional revision- for instance, when an error appears in a published statistic-.
Environmental Accounts data is revised coherently with the data revision scheme of the Annual Spanish National Accounts and Spanish National Inventory System.
The annual publication reviews all the data of the series, to ensure its internal comparability and its coherence with the Emissions Inventory. The revision policy is in accordance with Regulation (EU) 691/2011 on the annual data transmission.
- 17.2Data revision - practice
The factors that determine revisions in Air Emissions Accounts estimates are basically the changes in the data of the Annual Spanish National Accounts, the Emissions Inventory updates and the changes made for the improvement of estimation procedures.
RMAR 2008-2022 (Greenhouse gasses)= 0,18%
The Emissions Account is built from a set of aggregate indicators on the origin and destination of polluting emissions into the atmosphere, which are based on a wide variety of statistical operations, which are in turn subject to their own availability and revision schedule. This means that the estimates of the aggregates are subject to a review process of the complete series of results that guarantee the updating of estimation methods.
In 2024, information on vehicle kilometres from the MOTs prepared by the Directorate General of Traffic (DGT) has been incorporated. This involves a review of the complete series (2008-2022) to ensure internal comparability of the estimates.
- 17.1Data revision - policy
- 18Statistical processing
- 18.1Source data
Since Air Emissions Accounts are synthesis statistics, they integrate and reconcile a great amount of economic and environmental information sources.
Air Emissions Accounts use the following statistical information:National Statistics Institute:
- Spanish National Accounts
- Energy Consumption Survey
- Physical energy flow accounts
Ministry for Ecological Transition and the Demographic Challenge:
- Emissions Inventory
- Spanish Register of Emissions and Pollutant Sources (PRTR)
Ministry of Agriculture, Fishing and Food
- Fishing fleet Statistics
Ministry of Public Works Statistics
- Air Transport Statistics of the Directorate General of Civil Aviation
- Traffic Maps of the Directorate General of Roads
- Road Freight Transport Survey
Ministry for home affairs
- Records Stock of Vehicles of the Spanish Traffic Authority
Organisation for Economic Co-operation and Development
- Air Transport CO2
National Department of Traffic (DGT)
- Vehicle fleet microdata (annual)
- 18.2Frequency of data collection
The data is collected annually.
- 18.3Data collection
Data collection techniques may vary depending on the type of source, the date in which the data is available, etc.
Generally, the data is sent to the Environmental Accounts Unit by the different units that compile it. However the information can sometimes be obtained directly via the corresponding database.
- 18.4Data validation
The base information coming from different statistics undergoes a set of treatments: Outlier identification, error filtering, adjustment to Environmental Accounts stipulations.
- 18.5Data compilation
The compilation process may be structured in several stages:
1. Updating of base information: Collection of available data
2. Treatment of base information: It undergoes a series of treatments, consisting of outlier identification, error filtering and adjustment to Environmental Accounts stipulations.
3. Breakdown of the data by industry and household sector as final consumers: In order to achieve a more accurate estimate, auxiliary files are used so as to achieve the highest possible breakdown level of the different identifiable components of each of type pollutant.
4. Estimate analysis and revision: The result time series are analysed for each type of pollutant in order to detect possible errors.
5. Preparation of the final result files with the different required formats: sending format to EUROSTAT, and files for dissemination in INEBase (Results, Methodology, Press release)
- 18.6Adjustment
No seasonal adjustments are carried out.
- 18.1Source data
- 19Comment
- 19.1Comment
-
- 19.1Comment