Year Purchasing power parity; 2011 international dollar (Units) 1980 40934.98 1981 40456.63 1982 41540.78 1983 42980.73 1984 43320.30 1985 41488.20 1986 40268.25 1987 38405.86 1988 39279.14 1989 38296.81 1990 39296.01 1991 38586.72 1992 40661.27 1993 42616.98 1994 42843.41 1995 42533.16 1996 42774.02 1997 42639.49 1998 43544.68 1999 44945.46 2000 46848.02 2001 46291.74 2002 44526.74 2003 43989.33 2004 43676.76 2005 43218.76 2006 42583.31 2007 42615.48 2008 42525.33 2009 40944.91 2010 40777.39 2011 42962.58 2012 44050.32 2013 44797.47 2014 44564.24 2015 43978.26 2016 43795.41 2017 44569.89 2018 44495.10 2019 44427.36 2020 44470.16 2021 44624.72 2022 44820.44 2023 45168.35 2024 45599.10