Dataset: MEI Original Release Data and Revisions
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OECD statistics contact: stat.contact@oecd.org
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It should be noted that for data presented as indices (e.g. CPI) a standard OECD base year is used for the presentation format, which changes every 5 years. These changes per se are simple re-references and do not constitute revisions as growth rates before and after the change in OECD base year will be the same. The relevant timing of OECD base year re-references are:
  • Change from 1990=100 to 1995=100 at July 1999 edition.
  • Change from 1995=100 to 2000=100 at July 2004 edition.
  • Change from 2000=100 to 2005=100 at April 2009 edition.
  • Change from 2005=100 to 2010=100 at November 2013 edition.
Dataset: MEI Original Release Data and RevisionsContact person/organisation
OECD statistics contact: stat.contact@oecd.org
Statistical population
Access data published in every edition of the MEI and observe the revisions made to first published data for key economic variables such as Gross Domestic Product and its expenditure components, Industrial Production and Production in Construction, Balance of Payments, Composite Leading Indicators, Consumer Prices, Retail Trade, Standardised Unemployment Rates, Civilian Employment, Hourly Earnings, Monetary Aggregates and International Trade. This online facility provides a snapshot of data which was available for analysis in the Main Economic Indicators database at monthly intervals in the past, starting from February 1999. Full time series back as far as 1960 are provided for each variable in each historical monthly release. The latest data with long time series for other key economic variables that are not subject to revision (e.g. interest rates, exchange rates, business tendency surveys etc.) can be accessed at: http://stats.oecd.org/mei/.
Recommended uses and limitations
Having access to originally published data enables analysts to test the likely effectiveness of econometric models in simulated real-time, in particular models used for forecasting. It also provides the opportunity to perform revisions analysis - to study the magnitude and direction of subsequent revisions to published statistics.

Revisions to time series published in subsequent editions of the Main Economic Indicators publication may be due to practices employed both by the national statistical institutes providing the data and the OECD. More detailed reasons on the likely general sources of revisions can be found at: Revisions analysis for official statistics. In addition, issues specific to the variables presented in this database can be found in the metadata provided with each variable.

Quality comments
It should be noted that for data presented as indices (e.g. CPI) a standard OECD base year is used for the presentation format, which changes every 5 years. These changes per se are simple re-references and do not constitute revisions as growth rates before and after the change in OECD base year will be the same. The relevant timing of OECD base year re-references are:
  • Change from 1990=100 to 1995=100 at July 1999 edition.
  • Change from 1995=100 to 2000=100 at July 2004 edition.
  • Change from 2000=100 to 2005=100 at April 2009 edition.
  • Change from 2005=100 to 2010=100 at November 2013 edition.