Year	current US$
1971	121841.112638585
1972	139786.568663533
1973	202617.601668943
1974	380219.663979979
1975	995971.449599273
1976	969142.975436848
1977	595452.997185916
1978	258932.811508865
1979	359714.373194899
1980	526459.03276977
1981	1246639.34325418
1982	787317.004030479
1983	140730.094638312
1984	77604.3141533116
1985	76194.3321375168
1986	6732.58556978956
1987	52333.7481472522
1988	69604.6422794572
1989	91841.0842249021
1990	78012.852602202
1991	79698.0224110551
1992	67693.4697071124
1993	48854.2284886635
1994	51390.0700699247
1995	70209.4480683435
1996	32217.1184575999
1997	23243.5538516133
1998	16803.6545602191
1999	10805.4749596733
2000	14769.9332534028
2001	45192.3795688827
2002	46478.5828597994
2003	44614.6024768938
2004	19962736.1106452
2005	37112766.2115198
2006	108518341.010439
2007	110577904.870688
2008	166023080.250138
2009	102477355.282508
2010	129114117.256998
2011	233094070.500891
2012	286377975.690385
2013	309089285.358931
2014	56142875.2159085
2015	40589370.4002936
2016	37270971.6797642
2017	81779672.5671311
2018	119484517.311963
2019	78266102.878005
2020	43667707.3600735
2021	93211241.9347799