Year	constant 2010 US$
1970	40100332430.7183
1971	44552571636.5642
1972	42114109791.8103
1973	47981963932.166
1974	52565994292.0171
1975	54490970048.2559
1976	58488562376.9474
1977	58836821023.0249
1978	48765763000.1378
1979	49967298728.8018
1980	53227989670.4811
1981	54420406424.9276
1982	56436354970.3571
1983	53504599101.0616
1984	59495776743.4165
1985	61176710900.3171
1986	70919702341.1002
1987	67736522829.1741
1988	63876800970.6328
1989	59438674479.5257
1990	55859904420.2399
1991	52773342793.3269
1992	52269627050.8755
1993	55228957027.4369
1994	59527258982.49
1995	65007773075.9685
1996	65957668060.113
1997	77507305479.112
1998	87324768675.031
1999	80895879426.4442
2000	81567862285.9506
2001	77621292871.915
2002	77332307690.6107
2003	75789678224.183
2004	88157202371.4324
2005	97565830762.4431
2006	109553396922.653
2007	121509697945.678
2008	122607450864.47
2009	105834585192.334
2010	109061188473.735
2011	114319372877.43
2012	119663102092.927
2013	127625284698.745
2014	127858036106.439
2015	123451826091.273
2016	126967414570.522
2017	131362768647.456
2018	134403735304.012