Year	current US$
1976	2501270.87428174
1977	3000000
1978	3100000
1979	9500000
1980	5600000
1981	3700000
1982	6600000
1983	8200000
1984	11800000
1985	10200000
1986	14037037.037037008
1987	16370370.37037037
1988	20225925.925925933
1989	24262962.962962914
1990	32962962.962962985
1991	36711111.111111164
1992	41292592.592592634
1993	47470370.37037031
1994	51692592.59259261
1995	61085185.185185224
1996	67151851.8518518
1997	79518518.51851852
1998	84437037.03703701
1999	97007407.4074077
2000	107575692.57260045
2001	111350185.25320007
2002	116167432.41143374
2003	139142605.6494908
2004	144348544.70633665
2005	129709850.77387333
2006	155277911.65933394
2007	154833673.07507363
2008	163362548.37990433
2009	165933910.05251396
2010	200024643.51840305
2011	206319743.97082436
2012	173736774.43244195
2013	186028807.7830026
2014	232929045.71405226
2015	224486615.89054385
2016	233904072.68766716
2017	194141927.45432743
2018	133330325.96131368
2019	179959572.17478374
2020	80168889.20411664
2021	95218803.71448818
2022	143871079.7177563
2023	158678531.27731284