Year Purchasing power parity; international dollars (Billions) 1980 6.631 1981 6.968 1982 7.701 1983 8.163 1984 8.872 1985 9.684 1986 9.671 1987 8.385 1988 8.984 1989 10.777 1990 11.756 1991 12.897 1992 12.784 1993 13.604 1994 14.410 1995 15.444 1996 16.297 1997 17.529 1998 18.343 1999 16.939 2000 16.996 2001 17.752 2002 18.062 2003 18.732 2004 19.451 2005 19.903 2006 20.125 2007 21.980 2008 22.791 2009 22.409 2010 24.104 2011 26.345 2012 26.868 2013 27.464 2014 28.956 2015 28.630 2016 28.685 2017 30.987 2018 31.985 2019 33.765 2020 33.590 2021 35.646 2022 39.314 2023 41.671 2024 43.915 2025 45.883 2026 47.967 2027 50.140 2028 52.408 2029 54.814