Year	constant 2010 US$
1973	27236234412.6201
1974	27042707422.6349
1975	25732992197.6621
1976	25956931264.5385
1977	25354147217.1253
1978	27626374156.2437
1979	29306385826.9293
1980	29917164489.0244
1981	33570519263.2434
1982	32836752892.9139
1983	33642888474.5607
1984	34459144491.6772
1985	37656515322.6175
1986	39142154931.9882
1987	40586157117.0001
1988	41636459326.138
1989	42720176581.3494
1990	45698613333.1213
1991	45051854382.5274
1992	46539690559.5236
1993	47993443446.7822
1994	50515435967.1448
1995	52464438167.6898
1996	54092970333.8834
1997	55285763227.0521
1998	57719122604.0405
1999	60360604696.2196
2000	63818493022.9851
2001	66954431861.9594
2002	69529059714.2336
2003	72407674816.7155
2004	78075042777.9981
2005	83258025033.2557
2006	89785289026.5388
2007	96376720306.1675
2008	101482108745.776
2009	107128549234.106
2010	113906653765.195
2011	119802517102.592
2012	127508157166.554
2013	134344626594.698
2014	139841359246.207
2015	149067736616.516
2016	158646005704.998
2017	168171975501.467