Year	constant 2010 US$
1960	12584303256.3907
1961	13601986671.5248
1962	14748021562.1492
1963	15555253405.9358
1964	18774255148.9971
1965	21176079696.3876
1966	21851939179.3083
1967	21507492513.8488
1968	26099790438.8399
1969	30964001852.9875
1970	30536733659.6807
1971	34207936139.3409
1972	42520547307.0062
1973	44997433213.0326
1974	29917952355.6421
1975	33410134235.7423
1976	35687553739.665
1977	40098541444.7319
1978	45019344358.7947
1979	46948316529.4736
1980	39495355900.8782
1981	35645567895.0918
1982	34496003226.5081
1983	36689168011.7781
1984	30731384057.1341
1985	33604556302.4194
1986	33640253249.9045
1987	31745379843.7192
1988	32562247896.9053
1989	34551489724.2187
1990	36092179317.5128
1991	37625866148.9369
1992	36313989952.1759
1993	34863616835.8283
1994	33788618058.7874
1995	35184321714.8714
1996	38369229307.0122
1997	39713195911.0213
1998	48684225757.8524
1999	52286053162.7413
2000	53783632342.6565
2001	56670473442.9852
2002	56481433042.6437
2003	65012054276.5523
2004	66937856569.7376
2005	58985486999.9841
2006	70422466715.2213
2007	81610574360.6502
2008	75739968129.4338
2009	65188369871.6029
2010	52576987363.9715
2011	41800513753.2856
2012	31995012133.1653
2013	29298444604.7893
2014	27928375713.8262
2015	28116809262.8819
2016	29452131878.2347
2017	32125620913.1328
2018	28198803188.9877