Year Purchasing power parity; 2011 international dollar (Units) 1980 14710.09 1981 13621.50 1982 12973.73 1983 13270.02 1984 13308.67 1985 12175.45 1986 12879.95 1987 13056.98 1988 12646.92 1989 11616.81 1990 11225.36 1991 12238.28 1992 13316.97 1993 13941.89 1994 14567.55 1995 13979.71 1996 14577.75 1997 15579.19 1998 15998.83 1999 15290.22 2000 15010.69 2001 14205.10 2002 12536.26 2003 13531.21 2004 14599.63 2005 15741.19 2006 16842.73 2007 18179.90 2008 18732.25 2009 17452.84 2010 18911.82 2011 19817.45 2012 19392.31 2013 19637.76 2014 18935.00 2015 19243.58 2016 18645.09 2017 18933.30 2018 18255.34 2019 17838.80 2020 18025.49 2021 18401.82 2022 18819.75 2023 19293.16 2024 19761.86