Year	current US$
1965	750000
1966	1289999.96185303
1967	1009999.99046326
1968	1500000
1969	1190000.0572204601
1970	1220000.02861023
1971	1409999.9666214
1972	1360000.01430511
1973	1659999.9666214
1974	2430000.0667572
1975	4980000.01907349
1976	1860000.01430511
1977	1159999.9666214
1978	1490000.0095367401
1979	2259999.99046326
1980	140000.000596046
1981	939999.997615814
1982	1809999.9427795399
1983	1820000.05245209
1984	2759999.99046326
1985	2630000.1144409203
1986	3480000.01907349
1987	4210000.03814697
1988	4300000.19073486
1989	6800000.19073486
1990	5980000.01907349
1991	7530000.20980835
1992	10569999.6948242
1993	10399999.6185303
1994	10670000.076293899
1995	13069999.6948242
1996	12409999.8474121
1997	14250000
1998	10420000.076293899
1999	8579999.92370605
2000	11819999.6948242
2001	11409999.8474121
2002	8600000.38146973
2003	9939999.5803833
2004	12989999.7711182
2005	10600000.3814697
2006	12770000.4577637
2007	20329999.9237061
2008	28100000.3814697
2009	29610000.6103516
2010	32680000.305175804
2011	53930000.3051758
2012	53849998.4741211
2013	49220001.220703095
2014	52810001.373291
2015	36380001.0681152
2016	29190000.5340576
2017	23700000.762939498
2018	26450000.762939498
2019	24719999.3133545
2020	16850000.3814697
2021	41020000.4577637
2022	36459999.0844727