Year	current US$
1967	29999.999329447703
1968	29999.999329447703
1969	300000.011920929
1971	189999.99761581398
1974	19999.9995529652
1979	899999.976158142
1980	300000.011920929
1981	50000.0007450581
1982	109999.999403954
1991	1789999.96185303
1993	2069999.9332428002
1994	1480000.01907349
1995	3420000.07629395
1996	4880000.11444092
1997	2970000.02861023
1998	4489999.771118159
1999	3670000.07629395
2000	4250000
2001	2500000
2002	3569999.9332428
2003	5219999.79019165
2004	6559999.94277954
2005	5269999.98092651
2006	8239999.77111816
2007	5980000.01907349
2008	6949999.80926514
2009	4610000.1335144
2010	8100000.38146973
2011	6610000.1335144
2012	3430000.0667572
2013	1840000.0333786
2014	1279999.97138977
2015	50000.0007450581
2016	2279999.97138977
2017	4300000.19073486
2018	6510000.228881841
2019	2039999.96185303
2020	3160000.08583069
2021	2819999.9332428
2022	819999.992847443