Year	current US$
1968	119999.997317791
1970	189999.99761581398
1979	289999.99165535
1980	379999.99523162795
1981	140000.000596046
1982	230000.004172325
1989	150000.005960464
1990	209999.993443489
1991	720000.028610229
1993	740000.009536743
1994	59999.9986588955
1995	1149999.97615814
1996	2190000.05722046
1997	750000
1998	3799999.95231628
1999	2500000
2000	3740000.00953674
2001	3470000.02861023
2002	1740000.0095367401
2003	3809999.94277954
2004	3190000.05722046
2005	2079999.9237060498
2006	3869999.8855590797
2007	1740000.0095367401
2008	2339999.91416931
2009	1639999.98569489
2010	500000
2011	800000.011920929
2012	1370000.00476837
2013	360000.01430511504
2014	3160000.08583069
2015	2200000.04768372
2016	150000.005960464
2017	699999.988079071
2018	769999.980926514
2019	270000.010728836
2020	790000.021457672
2021	1039999.96185303
2022	519999.980926514