Year Purchasing power parity; 2011 international dollar (Units) 1980 10482.34 1981 9954.17 1982 9690.81 1983 9642.77 1984 9998.58 1985 10938.73 1986 10953.58 1987 11010.07 1988 11553.33 1989 12665.77 1990 13543.40 1991 13733.11 1992 14650.80 1993 15396.61 1994 14626.31 1995 14482.76 1996 15698.71 1997 17407.49 1998 17491.56 1999 17472.42 2000 18053.67 2001 17628.22 2002 17513.96 2003 16471.35 2004 16061.21 2005 17427.98 2006 18673.31 2007 20513.64 2008 19630.60 2009 19337.20 2010 19922.73 2011 21553.49 2012 22128.42 2013 23030.83 2014 23702.77 2015 24390.31 2016 25311.44 2017 26463.85 2018 27115.84 2019 27780.92 2020 28460.78 2021 29380.50 2022 30285.97 2023 31159.88 2024 31983.42