Year	current US$
1971	70000.0002980232
1972	550000.011920929
1973	280000.001192093
1974	1200000.04768372
1975	1539999.96185303
1976	1279999.97138977
1977	1039999.96185303
1978	7449999.80926514
1979	3569999.9332428
1980	4090000.1525878897
1981	3480000.01907349
1982	4530000.20980835
1983	5150000.09536743
1984	10159999.8474121
1985	9619999.88555908
1986	970000.028610229
1987	3440000.05722046
1988	3250000
1989	9329999.92370605
1990	7219999.79019165
1991	9109999.65667725
1992	11279999.7329712
1993	11500000
1994	7690000.05722046
1995	5579999.92370605
1996	4449999.80926514
1997	4920000.07629395
1998	7630000.11444092
1999	23840000.1525879
2000	6980000.01907349
2001	5960000.03814697
2002	7059999.94277954
2003	12729999.5422363
2004	9369999.88555908
2005	28620000.8392334
2006	15100000.3814697
2007	13109999.6566772
2008	14170000.076293899
2009	24139999.3896484
2010	17579999.9237061
2011	34580001.8310547
2012	37509998.3215332
2013	23360000.6103516
2014	30239999.7711182
2015	20969999.3133545
2016	22459999.084472697
2017	17590000.1525879
2018	23120000.8392334
2019	16840000.1525879
2020	19670000.0762939
2021	22829999.9237061
2022	20629999.1607666