Year Purchasing power parity; international dollars (Billions) 1980 3.061 1981 3.438 1982 3.738 1983 3.978 1984 4.219 1985 4.455 1986 4.652 1987 4.878 1988 6.156 1989 7.758 1990 8.129 1991 8.690 1992 9.260 1993 9.604 1994 9.672 1995 10.266 1996 10.819 1997 10.895 1998 12.004 1999 11.726 2000 13.401 2001 13.042 2002 13.375 2003 13.702 2004 14.042 2005 15.817 2006 17.606 2007 16.887 2008 18.298 2009 20.554 2010 22.870 2011 23.856 2012 28.576 2013 28.056 2014 28.096 2015 22.531 2016 20.459 2017 23.085 2018 23.070 2019 23.721 2020 22.527 2021 23.809 2022 25.932 2023 27.961 2024 29.904 2025 31.416 2026 33.208 2027 35.147 2028 37.226 2029 39.460