Year Purchasing power parity; 2011 international dollar (Units) 1980 20526.14 1981 21023.22 1982 21460.81 1983 21231.18 1984 22461.17 1985 22515.10 1986 22716.00 1987 23064.06 1988 22979.91 1989 23085.75 1990 23056.51 1991 21975.52 1992 21940.82 1993 22718.60 1994 23899.13 1995 24544.57 1996 25086.23 1997 25568.38 1998 25585.02 1999 26575.02 2000 27513.62 2001 27808.45 2002 28684.10 2003 29471.89 2004 30377.18 2005 30803.54 2006 31288.47 2007 32248.10 2008 31856.79 2009 31577.19 2010 31904.36 2011 32311.26 2012 32936.57 2013 33283.17 2014 33732.72 2015 34383.34 2016 35069.16 2017 35244.99 2018 35676.26 2019 35964.55 2020 36463.79 2021 36996.57 2022 37474.51 2023 38003.24 2024 38514.17