Year Purchasing power parity; international dollars (Billions) 1985 12.344 1986 12.251 1987 12.807 1988 13.404 1989 13.780 1990 14.451 1991 15.410 1992 16.511 1993 16.954 1994 17.861 1995 19.052 1996 19.959 1997 20.005 1998 20.116 1999 21.024 2000 22.113 2001 23.231 2002 24.505 2003 25.715 2004 26.539 2005 27.478 2006 29.571 2007 30.419 2008 30.404 2009 30.051 2010 31.207 2011 33.044 2012 35.210 2013 33.885 2014 33.344 2015 25.949 2016 23.633 2017 25.891 2018 26.498 2019 27.985 2020 28.676 2021 29.514 2022 31.077 2023 32.663 2024 34.249 2025 35.731 2026 37.467 2027 39.340 2028 41.310 2029 43.396