Year Purchasing power parity; international dollars (Billions) 1992 9.143 1993 8.142 1994 6.669 1995 6.440 1996 7.022 1997 7.851 1998 8.108 1999 8.523 2000 9.191 2001 9.898 2002 10.050 2003 10.969 2004 12.055 2005 12.412 2006 13.191 2007 14.706 2008 16.124 2009 16.691 2010 16.815 2011 18.184 2012 20.288 2013 23.124 2014 24.987 2015 25.107 2016 28.459 2017 31.280 2018 33.104 2019 35.208 2020 33.123 2021 36.549 2022 41.600 2023 44.925 2024 48.054 2025 50.946 2026 53.959 2027 57.157 2028 60.577 2029 64.193