Year	current US$
1960	9500000
1961	10700000
1962	11250000
1963	7660000
1964	9293000
1965	17633000
1966	11563000
1967	9433000
1968	5466940.31633176
1969	8286353.3711784
1970	14739646.4310063
1971	25387173.8714496
1972	23227404.6659069
1973	47857419.6080694
1974	103292592.947595
1975	146069074.960014
1976	116155039.786906
1977	9905172.44525905
1978	22573653.9111842
1979	20134780.6548082
1980	107503335.908203
1981	198854015.213667
1982	311884959.132668
1983	186897755.540394
1984	199449822.312198
1985	192546468.279435
1986	126349962.185599
1987	11998472.6280505
1988	67435090.1648837
1989	34425964.0548375
1990	273764721.800407
1991	327476916.295922
1992	71209349.2045402
1993	750323.867791054
1994	175188662.55906
1995	148086141.930736
1996	248715632.969779
1997	282601546.871063
1998	15407991.845619
1999	17946774.7348187
2000	190090627.35093
2001	9850280.28712399
2002	139652056.77431
2003	196571306.956198
2004	443423494.892113
2005	668564475.166232
2006	1113431994.719
2007	1227241648.87598
2008	1923491682.60387
2009	1993241390.30824
2010	1735883130.08267
2011	2157316878.94114
2012	2351562306.82131
2013	3003573133.33984
2014	2478480387.52702
2015	1863120980.87031
2016	789346604.519222
2017	965054219.212037
2018	1321051088.57443
2019	1371973832.67956