Year	current US$
1974	19999.9995529652
1991	109999.999403954
1993	150000.005960464
1994	9999.99977648258
1995	250000
1996	829999.983310699
1997	810000.002384186
1998	810000.002384186
1999	289999.99165535
2000	439999.997615814
2001	4360000.1335144
2002	9109999.65667725
2003	11460000.038146999
2004	14890000.3433228
2005	21700000.762939498
2006	25389999.3896484
2007	26479999.5422363
2008	29270000.4577637
2009	28870000.8392334
2010	27000000
2011	33180000.305175804
2012	29129999.1607666
2013	44569999.6948242
2014	33090000.152587898
2015	31069999.6948242
2016	32360000.6103516
2017	39330001.8310547
2018	45990001.6784668
2019	43409999.8474121
2020	33400001.5258789
2021	52930000.3051758
2022	36700000.762939505