Year	constant 2010 US$
1970	810653136.787071
1971	1383368381.34852
1972	1059636604.0634
1973	1407223108.8861
1974	1734817003.35801
1975	1643901878.73386
1976	1286787203.56979
1977	1650891624.64466
1978	1431473330.40012
1979	1481882635.03368
1980	1693193308.89671
1981	1805239790.90614
1982	1999435241.43131
1983	1209277142.9237
1984	1682463422.06774
1985	1484646151.0244
1986	1340415909.94585
1987	1761432425.42943
1988	1968716764.97077
1989	1649129724.21242
1990	1642161450.49656
1991	1849426604.29468
1992	1603916240.82641
1993	1562349415.61411
1994	1449415428.75727
1995	1556818176.39789
1996	1836104087.35924
1997	2042446953.61198
1998	2681639568.88549
1999	2579978374.75329
2000	2917451007.01626
2001	2723573410.09303
2002	2419963902.55956
2003	2624184803.36167
2004	3323790919.77028
2005	4360363003.82858
2006	5473024371.97308
2007	4910869016.75943
2008	4053532027.33848
2009	2059105977.06658
2010	1902592170.4453
2011	2144819105.79645
2012	2272657094.66404
2013	2254348447.41859
2014	2672648179.69415
2015	3240354117.75103
2016	3803540108.87197
2017	4223154402.82177
2018	4370661314.91862