Year	current US$
1964	59999.9986588955
1965	209999.993443489
1966	59999.9986588955
1967	150000.005960464
1968	29999.999329447703
1969	100000.00149011599
1970	189999.99761581398
1971	569999.992847443
1972	699999.988079071
1973	1330000.04291534
1974	1970000.02861023
1975	1470000.02861023
1976	1220000.02861023
1977	1750000
1978	2259999.99046326
1979	4820000.17166138
1980	5090000.15258789
1981	3380000.1144409203
1982	2220000.02861023
1983	1710000.03814697
1984	2910000.08583069
1985	3640000.10490417
1986	4880000.11444092
1987	6070000.17166138
1988	5579999.92370605
1989	4250000
1990	5389999.8664856
1991	3269999.98092651
1992	4179999.8283386203
1993	1720000.02861023
1994	3849999.90463257
1995	6750000
1996	7800000.19073486
1997	6239999.771118159
1998	3549999.95231628
1999	3410000.08583069
2000	4510000.228881841
2001	4219999.79019165
2002	5699999.80926514
2003	6159999.84741211
2004	8510000.22888184
2005	11729999.5422363
2006	16100000.381469702
2007	20229999.5422363
2008	22520000.4577637
2009	8350000.38146973
2010	12960000.038146999
2011	12760000.2288818
2012	13930000.3051758
2013	12630000.1144409
2014	11310000.4196167
2015	6550000.19073486
2016	7469999.79019165
2017	9939999.5803833
2018	9760000.22888184
2019	9060000.4196167
2020	9100000.38146973
2021	9000000
2022	8029999.73297119