Year Purchasing power parity; 2017 international dollar (Units) 1980 3914.629 1981 4064.329 1982 4201.075 1983 4354.387 1984 4522.192 1985 4647.380 1986 4816.318 1987 5180.347 1988 5767.614 1989 6368.717 1990 7010.146 1991 7509.654 1992 8120.697 1993 8745.552 1994 9358.708 1995 10017.934 1996 10467.455 1997 10059.377 1998 9180.020 1999 9489.818 2000 9809.622 2001 10053.815 2002 10583.760 2003 11260.158 2004 11886.325 2005 12304.402 2006 12837.878 2007 13460.061 2008 13620.532 2009 13458.527 2010 14399.045 2011 14450.479 2012 15424.544 2013 15767.361 2014 15854.132 2015 16285.387 2016 16782.099 2017 17422.952 2018 18101.518 2019 18431.951 2020 17273.544 2021 17503.305 2022 17910.144 2023 18218.134 2024 18687.861 2025 19212.638 2026 19777.759 2027 20360.656 2028 20964.254 2029 21587.526