Organisation for Economic Co-operation and Development

National values have been computed based on regional estimates. For this reason, it is possible that in some cases these values differ from national statistics

This table provides information on the main relevant indicators. The data have mainly been supplied by the World Bank, and cover, where available: -Current Gross National Income (GNI) in US $ millions; -GNI per capita (US $); -Population; -Energy use as kilogram of oil per capita; -Average Life Expectancy of Adults; and -Adult Literacy Rate as a percentage of the country population. Data for Sudan include South Sudan, with the exception of total population, which is reported separately.

This dataset presents annual population data from 1950 when available by sex and five year age groups. The data is available for the 34 member countries and also for Colombia, Brazil, South Africa and Russian Federation. Data are presented in thousands of persons. The population data is presented in 18 five year age groups which refer to the population from 0-4 to 85 and more.

OECD countries: Large regions ; Small regions (Predominantly urban, rural and intermediate regions) ; Non-OECD member countries: Large regionsThe OECD has classified two levels of geographic units within each member country: large regions (Territorial level 2 or TL2) composed by 362 regions, and small regions (Territorial Level 3 or TL3) composed by 1802 small regions. TL3 regions are further classified as predominantly urban (PU), predominantly rural (PR) and intermediate (IN). All the territorial units are defined within national borders, and each TL3 region is contained in one TL2 region, with the exception of the United States and one region in Germany (Ost-Friesland DE12). National values have been computed based on regional estimates. For this reason, it is possible that in some cases these values differ from national statistics. Key Statistical Concept In any analytical study conducted at sub-national levels, the choice of the territorial unit is of prime importance. The territorial grids (TL2 and TL3) used in this database are officially established and relatively stable in all member countries, and are used by many as a framework for implementing regional policies. This classification - which, for European countries, is largely consistent with the Eurostat classification - facilitates greater comparability of regions at the same territorial level. The differences with the Eurostat NUTS classification concern Belgium, Greece and the Netherlands where the NUTS 2 level correspond to the OECD TL3 and Germany where the NUTS1 corresponds to the OECD TL2 and the OECD TL3 corresponds to 97 spatial planning regions (Groups of Kreise). For the United Kingdom the Eurostat NUTS1 corresponds to the OECD TL2. Due to limited data availability, labour market indicators in Canada are presented for a different grid (groups of TL3 regions). Since these breakdowns are not part of the OECD official territorial grids, for the sake of simplicity they are labelled as Non Official Grids (NOG).

For non-EU countries, UNESCO-OECD-Eurostat (UOE) data collection on education statistics, compiled on the basis of national administrative sources, reported by Ministries of Education or National Statistical Offices. For EU countries, Eurostat data.