Year Purchasing power parity; international dollars (Billions) 1993 11.206 1994 11.258 1995 11.741 1996 12.547 1997 14.429 1998 15.225 1999 15.375 2000 17.309 2001 18.761 2002 20.343 2003 22.321 2004 24.481 2005 27.654 2006 31.291 2007 34.574 2008 33.432 2009 28.717 2010 29.777 2011 32.598 2012 34.385 2013 36.198 2014 38.050 2015 38.389 2016 41.197 2017 44.663 2018 47.415 2019 50.156 2020 50.328 2021 56.451 2022 60.147 2023 60.466 2024 61.598 2025 64.050 2026 66.564 2027 69.125 2028 71.852 2029 74.732