Year Purchasing power parity; 2011 international dollar (Units) 1980 14884.15 1981 13098.64 1982 14256.38 1983 15610.58 1984 13539.07 1985 12761.09 1986 11171.73 1987 11227.23 1988 9917.35 1989 10182.81 1990 11735.06 1991 12687.19 1992 12767.30 1993 12740.63 1994 12369.48 1995 12315.27 1996 12891.64 1997 12607.68 1998 12634.78 1999 12463.25 2000 13097.79 2001 12984.59 2002 14100.23 2003 15168.86 2004 15536.12 2005 16089.32 2006 16679.24 2007 17584.66 2008 17352.58 2009 17132.99 2010 17879.37 2011 18183.55 2012 16584.84 2013 16336.70 2014 16533.50 2015 16065.25 2016 17855.32 2017 18302.77 2018 17383.77 2019 16161.41 2020 16023.54 2021 15999.98 2022 16001.69 2023 15997.39 2024 16010.54