Year	constant 2010 US$
1970	124451317120.018
1971	127219412703.201
1972	132677216313.083
1973	142011413065.753
1974	134278258107.757
1975	135523098478.812
1976	144259871311.465
1977	148000176070.783
1978	154056110712.44
1979	156287977771.153
1980	150685436348.159
1981	146350799913.672
1982	149815788738.819
1983	154464656935.874
1984	159841914870.461
1985	166239905583.982
1986	178340017537.65
1987	179149133062.546
1988	177347864698.273
1989	176217021581.914
1990	179690445200.588
1991	179849709271.531
1992	185887062466.368
1993	186899042330.562
1994	196964318405.051
1995	203503982437.007
1996	209665363259.934
1997	215537937211.812
1998	221251976563.542
1999	226445325321.542
2000	232519506417.527
2001	234149686891.415
2002	237136806449.172
2003	238785514828.636
2004	248081273945.218
2005	258558840609.898
2006	268510186125.462
2007	267216136011.876
2008	265599278916.448
2009	254255075633.879
2010	266134688601.106
2011	268319080769.471
2012	271299697595.278
2013	279233096777.47
2014	290040275354.022
2015	296698004808.971
2016	298847348033.846
2017	306596412079.953