Year Purchasing power parity; 2011 international dollar (Units) 1980 3736.25 1981 3843.02 1982 3968.33 1983 4133.13 1984 4279.59 1985 4372.81 1986 4512.86 1987 4859.87 1988 5396.46 1989 6018.34 1990 6596.95 1991 7068.70 1992 7707.73 1993 8284.92 1994 8850.80 1995 9467.24 1996 9893.28 1997 9517.07 1998 8696.73 1999 8995.41 2000 9295.07 2001 9559.92 2002 10089.72 2003 10753.62 2004 11363.54 2005 11772.88 2006 12286.77 2007 12880.59 2008 13026.47 2009 12863.46 2010 13750.24 2011 13805.00 2012 14742.53 2013 15077.49 2014 15171.37 2015 15590.98 2016 16061.74 2017 16661.15 2018 17312.60 2019 17881.70 2020 18487.86 2021 19109.94 2022 19758.09 2023 20445.13 2024 21179.32