Year	current US$
1970	70000.0002980232
1971	79999.9982118607
1975	689999.997615814
1976	1240000.0095367401
1977	8569999.69482422
1978	7860000.1335144
1979	11949999.8092651
1980	11420000.076293899
1981	9430000.30517578
1982	5119999.88555908
1983	8239999.77111816
1984	8960000.03814697
1985	6050000.19073486
1986	13739999.7711182
1987	14850000.3814697
1988	16000000
1989	15479999.5422363
1990	23950000.762939498
1991	21879999.1607666
1992	26549999.237060502
1993	31940000.5340576
1994	36349998.4741211
1995	45490001.6784668
1996	46810001.373291
1997	30069999.6948242
1998	47610000.6103516
1999	51529998.779296905
2000	46849998.4741211
2001	48319999.6948242
2002	51930000.3051758
2003	66430000.305175796
2004	67419998.1689453
2005	64870002.746582
2006	71069999.6948242
2007	92389999.3896484
2008	87279998.7792969
2009	104540000.915527
2010	85300003.0517578
2011	113250000
2012	78800003.0517578
2013	88629997.253418
2014	57409999.8474121
2015	49189998.626709
2016	36029998.779296905
2017	42569999.6948242
2018	31950000.762939498
2019	16540000.9155273
2020	6179999.82833862
2021	3019999.98092651
2022	1250000