Year	current US$
1972	29999.999329447703
1973	9999.99977648258
1974	9999.99977648258
1975	9999.99977648258
1976	209999.993443489
1977	1379999.99523163
1978	2049999.9523162802
1979	2150000.09536743
1980	3180000.0667572
1981	8180000.305175779
1982	27409999.8474121
1983	32849998.4741211
1984	34200000.762939505
1985	27959999.084472697
1986	55689998.626709
1987	135320007.32421902
1988	286750000
1989	80089996.3378906
1990	106160003.662109
1991	58849998.4741211
1992	249940002.44140598
1993	97000000
1994	93870002.746582
1995	26899999.6185303
1996	34810001.373291
1997	20389999.3896484
1998	110559997.558594
1999	11560000.4196167
2000	13090000.1525879
2001	13079999.923706101
2002	446459991.455078
2003	15090000.1525879
2004	26989999.7711182
2005	21559999.4659424
2006	30239999.7711182
2007	42580001.8310547
2008	34549999.237060495
2009	24809999.4659424
2010	35319999.6948242
2011	23399999.6185303
2012	22360000.6103516
2013	22250000
2014	23659999.8474121
2015	19559999.4659424
2016	6690000.05722046
2017	22420000.0762939
2018	33590000.1525879
2019	27940000.5340576
2020	18370000.8392334
2021	22920000.0762939
2022	41439998.626709