Year	current US$
1971	29999.999329447703
1973	59999.9986588955
1975	109999.999403954
1977	5159999.84741211
1978	8909999.84741211
1979	12739999.7711182
1980	20569999.6948242
1981	13979999.5422363
1982	10760000.2288818
1983	5750000
1984	14470000.2670288
1985	10909999.8474121
1986	17170000.0762939
1987	27280000.6866455
1988	38419998.1689453
1989	43330001.8310547
1990	45099998.4741211
1991	43430000.3051758
1992	55959999.0844727
1993	45000000
1994	35349998.4741211
1995	76199996.9482422
1996	43150001.5258789
1997	28459999.084472697
1998	75699996.9482422
1999	89029998.7792969
2000	48930000.3051758
2001	65019996.643066406
2002	52139999.3896484
2003	79889999.3896484
2004	64440002.44140631
2005	72610000.6103516
2006	78660003.6621094
2007	75000000
2008	139639999.38964802
2009	84099998.4741211
2010	208330001.831055
2011	78309997.55859381
2012	123279998.77929701
2013	104580001.831055
2014	78419998.1689453
2015	73150001.5258789
2016	82169998.1689453
2017	106160003.662109
2018	84660003.6621094
2019	128119995.117188
2020	105139999.38964799
2021	119410003.662109
2022	69830001.8310547