Year Purchasing power parity; 2011 international dollar (Units) 1980 14209.12 1981 14465.85 1982 14393.96 1983 14237.61 1984 14467.92 1985 14689.84 1986 14849.53 1987 15585.00 1988 16533.92 1989 17537.43 1990 18175.89 1991 18745.54 1992 20045.46 1993 20627.92 1994 21363.31 1995 22632.08 1996 23414.48 1997 24355.98 1998 25002.69 1999 25797.62 2000 25386.74 2001 25371.58 2002 25900.19 2003 26374.35 2004 26327.44 2005 27143.80 2006 27486.93 2007 28532.11 2008 29319.50 2009 28387.81 2010 29173.47 2011 29505.62 2012 30109.31 2013 31118.37 2014 33253.15 2015 35903.93 2016 37043.85 2017 38658.97 2018 40538.95 2019 42136.86 2020 43660.27 2021 45029.96 2022 46405.26 2023 47821.84 2024 49232.69