Year Purchasing power parity; 2011 international dollar (Units) 1995 39355.70 1996 38305.89 1997 39435.97 1998 39197.30 1999 39198.32 2000 41741.25 2001 39955.22 2002 38549.09 2003 38866.06 2004 41053.86 2005 40492.56 2006 40189.37 2007 40702.32 2008 40454.56 2009 35626.77 2010 34350.75 2011 35230.99 2012 34158.09 2013 34976.67 2014 34858.96 2015 34281.48 2016 34033.79 2017 34663.56 2018 34950.58 2019 35074.28 2020 35272.39 2021 35554.33 2022 35847.56 2023 36152.93 2024 36470.28