Year Purchasing power parity; international dollars (Billions) 1980 3.840 1981 4.012 1982 3.768 1983 4.042 1984 4.289 1985 4.568 1986 4.944 1987 5.193 1988 5.379 1989 6.187 1990 7.016 1991 7.811 1992 7.864 1993 8.337 1994 8.839 1995 9.295 1996 10.154 1997 10.824 1998 11.266 1999 12.139 2000 12.407 2001 14.637 2002 15.326 2003 17.054 2004 17.785 2005 19.542 2006 21.084 2007 22.411 2008 23.933 2009 25.208 2010 26.895 2011 28.340 2012 28.185 2013 29.823 2014 32.435 2015 35.447 2016 39.327 2017 41.593 2018 44.565 2019 47.472 2020 47.501 2021 51.195 2022 56.704 2023 61.416 2024 65.413 2025 69.563 2026 74.346 2027 79.462 2028 84.932 2029 90.796