Year	constant 2010 US$
1960	8122822485.50572
1961	8523329444.34909
1962	8591203616.97994
1963	10112955363.648
1964	10780393961.5071
1965	12127233805.4673
1966	11265742145.4357
1967	12821430893.5471
1968	13668346297.6395
1969	11428468160.0067
1970	16913297294.3789
1971	15219249063.3062
1972	10377492299.8528
1973	9212520815.96221
1974	10651820504.0797
1975	9974593108.19604
1976	10668789304.0301
1977	11807002602.3693
1978	12612801880.1049
1979	16427731002.0566
1980	17085596161.7326
1981	13516062827.4024
1982	13452103911.9658
1983	14946225398.5822
1984	16027223462.1653
1985	17456298918.9063
1986	17026640649.4523
1987	17365799242.9822
1988	16774502965.6419
1989	18170510511.8569
1990	17534615775.1484
1991	16237592848.8849
1992	21245773892.1051
1993	24399572624.3543
1994	21767019789.7625
1995	22631121917.2213
1996	25707473430.3743
1997	24734379567.6297
1998	23344027928.2649
1999	22083117572.8674
2000	21586237092.6004
2001	22052538838.7474
2002	22723644614.6535
2003	25273362588.9628
2004	23106096549.1772
2005	32462283601.7662
2006	38527586413.7889
2007	36959410043.955
2008	39125935141.0798
2009	32902673135.4086
2010	34332943126.4521
2011	34291986868.7776
2012	33230453769.3586
2013	33831958000.0304
2014	33918014017.75
2015	33372821377.0668
2016	38719767450.7304
2017	46859268730.1923
2018	55071433635.7836