Year	current US$
1967	129999.995231628
1968	100000.00149011599
1969	230000.004172325
1970	389999.98569488496
1971	460000.00834465
1972	500000
1973	1230000.01907349
1974	1620000.00476837
1975	1909999.9666214
1976	2299999.95231628
1977	3529999.97138977
1978	4949999.80926514
1979	7699999.80926514
1980	6389999.8664856
1981	5539999.96185303
1982	7059999.94277954
1983	4769999.98092651
1984	4579999.92370605
1985	5130000.11444092
1986	5010000.228881841
1987	5789999.96185303
1988	6360000.1335144
1989	8380000.11444092
1990	10069999.6948242
1991	6389999.8664856
1992	6530000.20980835
1993	6639999.8664856
1994	7659999.84741211
1995	7969999.79019165
1996	10180000.3051758
1997	7730000.01907349
1998	10880000.1144409
1999	9159999.84741211
2000	5710000.03814697
2001	7190000.05722046
2002	7480000.01907349
2003	15039999.961853001
2004	12189999.5803833
2005	16799999.237060502
2006	22799999.237060502
2007	22750000
2008	20909999.8474121
2009	19299999.237060502
2010	17739999.7711182
2011	23979999.5422363
2012	17670000.0762939
2013	23870000.8392334
2014	19299999.237060502
2015	17840000.1525879
2016	20299999.237060502
2017	14600000.3814697
2018	10630000.1144409
2019	10100000.3814697
2020	13090000.1525879
2021	16889999.3896484
2022	19139999.3896484