PPPs for the Euro area member countries are shown in euros.
1999, 2002: PPPs for all OECD countries are triennial benchmark results calculated jointly by the OECD and Eurostat.
Years prior to 1995: The 1995 PPPs for all countries have been backdated using the relative rates of inflation between countries as measured by their implicit price deflators for GDP.
1995-1998: PPPs for all European countries except Czech Republic, Hungary, Poland, Slovak Republic and Turkey are annual benchmark results provided by Eurostat. PPPs for all other countries are OECD estimates based on the methods described above.
2000-2001, 2003: PPPs for all European countries are annual benchmark results provided by Eurostat. PPPs for all non-European countries are OECD estimates.
2004: PPPs for all European countries are preliminary annual benchmark results provided by Eurostat. PPPs for non-European countries are OECD estimates. Estimates and preliminary results should be interpreted with caution as they are subject to revision.