Year	current US$
1967	1580000.04291534
1968	100000.00149011599
1969	19999.9995529652
1970	280000.001192093
1971	70000.0002980232
1972	319999.99284744303
1973	1049999.95231628
1974	4320000.17166138
1975	3690000.05722046
1976	8880000.11444092
1977	19940000.5340576
1978	15960000.038146999
1979	19229999.5422363
1980	45610000.6103516
1981	34759998.3215332
1982	26270000.4577637
1983	34419998.1689453
1984	28010000.2288818
1985	27780000.6866455
1986	52470001.220703095
1987	58939998.626709
1988	66959999.0844727
1989	57340000.1525879
1990	62490001.6784668
1991	46310001.373291
1992	32209999.084472697
1993	35299999.237060495
1994	29069999.6948242
1995	31370000.8392334
1996	22049999.237060502
1997	20469999.3133545
1998	26690000.5340576
1999	15279999.7329712
2000	15300000.1907349
2001	23559999.4659424
2002	22739999.7711182
2003	20989999.7711182
2004	97610000.6103516
2005	154770004.272461
2006	96080001.8310547
2007	202509994.506836
2008	157580001.831055
2009	97330001.8310547
2010	86709999.0844727
2011	45380001.0681152
2012	14899999.6185303
2013	10829999.923706101
2014	5909999.84741211
2015	3589999.91416931
2016	10800000.1907349
2017	4239999.771118159
2018	13590000.1525879
2019	9369999.88555908
2020	14220000.2670288
2021	9649999.61853027
2022	4440000.05722046