Year	current US$
1965	650000.004097819
1966	859999.9975413079
1967	890000.004321337
1968	1129999.99523163
1969	799999.997019768
1970	1499999.99441206
1971	1299999.9653548
1972	1429999.98852611
1973	1970000.00812113
1974	4680000.07607043
1975	11279999.9713898
1976	3079999.97213483
1977	9890000.03226101
1978	11899999.8942018
1979	13939999.8988956
1980	21400000.1177192
1981	36760000.0780076
1982	52840000.5493313
1983	49389999.0171194
1984	47419999.1561472
1985	36310000.4885346
1986	28709999.9319762
1987	34029999.2207438
1988	40270000.3813952
1989	64379999.024793506
1990	71050000.7495284
1991	45879999.579861805
1992	65189999.5300919
1993	51060000.272467695
1994	66160000.0150502
1995	60100001.0091811
1996	59919999.387115195
1997	48609999.2338568
1998	35849999.759346195
1999	33030000.211671002
2000	34039999.5520711
2001	22680000.0667572
2002	25709999.833256
2003	36110000.1595914
2004	49459999.2074072
2005	53630000.1461059
2006	52380000.3565848
2007	73949999.153614
2008	69619999.2522597
2009	93650000.1773238
2010	185599999.39613
2011	341580000.910908
2012	380410002.250224
2013	309880002.19128996
2014	178709998.304024
2015	101019998.604432
2016	76089999.7204542
2017	152339999.726042
2018	74180000.6963313
2019	74120000.2338737
2020	56240001.1811405
2021	52670000.5084276
2022	50909999.77849426