Year	current US$
1970	6489999.9983608695
1971	8280000.293627379
1972	5959999.87795949
1973	8510000.10035932
1974	19750000.4377216
1975	22969999.974593498
1976	17380000.2522767
1977	21319999.7358024
1978	30249999.8956919
1979	55859999.5970726
1980	85320000.8273125
1981	60570000.5292892
1982	40130000.0548363
1983	41340000.4953146
1984	39630000.1293421
1985	42139999.229461
1986	58399999.2646277
1987	57299999.155104205
1988	53979999.627918
1989	63480001.090094395
1990	62669999.9161065
1991	68480000.2723932
1992	88620000.4816055
1993	90200000.0476837
1994	87929999.5303154
1995	90769999.8021126
1996	86790001.0347366
1997	65120000.4220009
1998	56660000.026226
1999	57059999.7937679
2000	51650000.6318092
2001	46549999.475479096
2002	44310000.0023842
2003	46790000.3194809
2004	46100000.500679
2005	57050000.2801418
2006	54130000.2336502
2007	68180000.603199
2008	59790000.0214577
2009	66770000.755786896
2010	67610000.4315376
2011	62769999.444484696
2012	58217925.131321006
2013	58145468.2350159
2014	63086660.504341096
2015	66632975.110609606
2016	64646997.724659696
2017	64380410.6712341
2018	69621394.6938515
2019	67434000.2536774
2020	61843000.0543594
2021	61175000.0715256
2022	56647999.823093474