Year Purchasing power parity; 2011 international dollar (Units) 2002 1026.92 2003 1072.08 2004 1038.72 2005 1122.25 2006 1146.87 2007 1251.73 2008 1267.82 2009 1490.03 2010 1570.95 2011 1621.76 2012 1788.78 2013 1828.78 2014 1819.26 2015 1783.94 2016 1774.19 2017 1776.67 2018 1792.81 2019 1821.81 2020 1860.60 2021 1908.45 2022 1967.26 2023 2037.91 2024 2121.46