Year Purchasing power parity; 2011 international dollar (Units) 1995 19029.06 1996 19912.89 1997 19817.92 1998 19771.98 1999 20073.80 2000 20953.76 2001 21660.35 2002 22084.86 2003 22899.73 2004 24016.97 2005 25577.31 2006 27264.16 2007 28705.60 2008 29221.41 2009 27598.27 2010 28127.75 2011 28560.54 2012 28281.63 2013 28116.26 2014 28889.83 2015 30349.01 2016 31046.86 2017 32321.72 2018 33218.96 2019 34138.53 2020 35014.03 2021 35849.92 2022 36701.63 2023 37599.08 2024 38529.54