Year	constant 2010 US$
1970	27075979.8932466
1971	28783475.3913578
1972	29759220.6849509
1973	31283743.3725267
1974	33966984.164231
1975	35125608.243277
1976	31710617.2470545
1977	42260513.5782537
1978	44577808.748887
1979	43846058.5443688
1980	44344253.3617833
1981	45399478.1934752
1982	47496058.4447677
1983	45619900.9498975
1984	46301206.0344662
1985	46650870.7015049
1986	44360684.2844158
1987	52140191.9810619
1988	52178639.4874113
1989	55435534.666849
1990	61655203.3313775
1991	64454194.0504003
1992	72747488.4017168
1993	76421941.6130846
1994	79255810.5869461
1995	79206447.4186361
1996	84984053.6752546
1997	90626075.7629152
1998	92694909.6530551
1999	102762222.248348
2000	114609711.730521
2001	114158297.309462
2002	114777311.440069
2003	159347598.182356
2004	174429503.48982
2005	179837356.109526
2006	168222625.71907
2007	133475656.483001
2008	146672123.823731
2009	148890410.582497
2010	160621450
2011	153645682.117146
2012	163337881.645825
2013	173214981.499231
2014	177404692.162672
2015	157510065.995154
2016	121611148.460896
2017	133537289.924576
2018	138033992.482364