Year	constant 2010 US$
1970	122452273.368609
1971	119648042.416154
1972	134100600.880511
1973	162140879.515484
1974	235595162.686403
1975	248186357.407439
1976	181751256.176135
1977	173367743.995347
1978	175204737.063725
1979	154907278.39193
1980	129335599.484304
1981	125060042.476558
1982	133611156.49205
1983	132542267.240113
1984	138955602.751732
1985	129335599.484304
1986	128266710.232368
1987	116508928.461067
1988	127197820.980431
1989	122922263.972686
1990	121853374.720749
1991	121853374.720749
1992	122922263.972686
1993	123991153.224622
1994	126128931.728495
1995	126128931.728495
1996	128266710.232368
1997	130404488.73624
1998	138955602.751732
1999	136817824.247859
2000	145368938.26335
2001	143231159.759477
2002	148655986.490905
2003	151638508.170583
2004	149167770.664732
2005	156554009.173463
2006	156476835.369473
2007	159661056.450992
2008	156321846.427942
2009	157576722.409716
2010	156120895.248578
2011	158610338.316338
2012	166086149.744381
2013	173086305.455313
2014	171878460.600625
2015	189763115.564024
2016	199497489.981409
2017	200152719.092846
2018	204157847.119852