Year Purchasing power parity; 2011 international dollar (Units) 1980 9872.06 1981 9990.98 1982 8999.47 1983 8648.52 1984 8499.68 1985 8570.61 1986 9277.24 1987 9957.25 1988 10043.87 1989 10098.64 1990 10073.01 1991 10369.15 1992 11124.84 1993 11352.37 1994 12064.80 1995 11816.30 1996 12398.40 1997 12875.52 1998 13320.59 1999 12834.48 2000 12555.63 2001 12112.68 2002 11274.78 2003 11565.79 2004 12091.47 2005 12872.25 2006 13377.28 2007 14249.01 2008 15252.16 2009 15828.68 2010 16970.30 2011 17763.02 2012 18317.28 2013 19090.47 2014 19631.54 2015 19628.38 2016 19884.54 2017 20336.94 2018 20688.32 2019 21006.10 2020 21560.55 2021 22131.44 2022 22719.14 2023 23324.38 2024 23947.93