Year	constant 2010 US$
1965	22455124.3000663
1966	22194950.1876677
1967	35893181.3838585
1968	50751435.0307991
1969	41933412.0562729
1970	46058529.284529
1971	48654395.2150185
1972	64266272.0778586
1973	17422819.3921965
1974	36401792.3794817
1975	74016419.5232405
1976	98779852.4030682
1977	89387683.8685876
1978	70488425.4921519
1979	60827775.2699439
1980	89262484.942525
1981	106778230.758023
1982	117332858.208546
1983	134874119.759367
1984	183428810.912621
1985	217720332.153999
1986	229399995.865562
1987	225093105.168626
1988	218215750.393323
1989	149574420.582759
1990	157992049.27926
1991	153587967.210465
1992	149306651.685902
1993	243756716.970331
1994	57754533.1936827
1995	305553993.540623
1996	275947807.308107
1997	305736400.853253
1998	244313494.661579
1999	239531307.661871
2000	289989278.841907
2001	328582526.109005
2002	323296712.205152
2003	482969126.715344
2004	979608774.711639
2005	1490368124.74123
2006	1052720882.21952
2007	1055243553.91955
2008	1116334538.67486
2009	966092326.512204
2010	1585395115.51538
2011	1940283900.13506
2012	2408067541.39564
2013	2763899005.32641
2014	2406283976.20628
2015	2573378762.36051
2016	1974249678.21714
2017	2005837673.06862
2018	2058698016.72257