Year	constant 2010 US$
1965	30542713952.1627
1966	30809551671.196
1967	32517307203.9348
1968	34349445066.7793
1969	38316275710.0568
1970	37330892865.163
1971	39632708905.4022
1972	41215868793.3343
1973	42850589578.06
1974	45367680244.3088
1975	44209543846.4427
1976	42868342594.7379
1977	46217940585.87
1978	41354601151.49
1979	45467183491.6085
1980	46475337132.8131
1981	40865369708.8382
1982	39714920895.9522
1983	42422644991.1861
1984	43472567820.5684
1985	39364440215.9339
1986	43321069271.358
1987	43788514759.6122
1988	41645120134.8155
1989	38527041735.1168
1990	36443862572.5543
1991	40225338177.9358
1992	44323782791.0222
1993	45888892714.5154
1994	47953725880.0392
1995	44518039659.8223
1996	47390289155.7753
1997	51727179959.2769
1998	52683489310.5955
1999	48506285344.1319
2000	46651784152.1588
2001	43217285676.5538
2002	38482736617.0657
2003	44627347521.7574
2004	49971943700.5016
2005	53681440656.191
2006	58566337077.7614
2007	62978705882.7635
2008	65259228084.5755
2009	60521522730.452
2010	67123175368.3781
2011	72269246793.9848
2012	70163807830.5256
2013	71218742903.3666
2014	67619313890.0091
2015	68137232117.4991
2016	64320770532.0545
2017	65973444132.4496
2018	62780610643.3176