Year	current US$
1976	439999.997615814
1977	400000.00596046395
1978	819999.992847443
1979	610000.014305115
1980	550000.011920929
1981	610000.014305115
1982	1129999.99523163
1983	2400000.09536743
1984	1360000.01430511
1985	1450000.04768372
1986	2779999.97138977
1987	2430000.0667572
1988	4329999.92370605
1989	5559999.94277954
1990	9310000.4196167
1991	9340000.15258789
1992	7800000.19073486
1993	8090000.152587891
1994	10579999.923706101
1995	11560000.4196167
1996	10550000.1907349
1997	6940000.05722046
1998	4760000.228881841
1999	4449999.80926514
2000	3579999.92370605
2001	3640000.10490417
2002	3789999.96185303
2003	4289999.96185303
2004	4949999.80926514
2005	3609999.89509583
2006	3130000.1144409203
2007	4369999.88555908
2008	3440000.05722046
2009	2230000.01907349
2010	2380000.1144409203
2011	2220000.02861023
2012	2150000.09536743
2013	2029999.97138977
2014	1529999.97138977
2015	620000.004768372
2016	469999.998807907
2017	550000.011920929
2018	589999.973773956
2019	330000.013113022
2020	819999.992847443
2021	500000
2022	289999.99165535