Year	current US$
1971	50000.0007450581
1975	19999.9995529652
1981	9999.99977648258
1984	170000.00178813902
1987	100000.00149011599
1989	509999.99046325695
1990	3940000.05722046
1991	860000.014305115
1992	750000
1993	200000.00298023198
1994	109999.999403954
1995	159999.99642372102
1996	90000.0035762787
1997	50000.0007450581
1998	50000.0007450581
1999	29999.999329447703
2001	19999.9995529652
2002	39999.9991059303
2003	59999.9986588955
2004	289999.99165535
2005	250000
2006	389999.98569488496
2007	200000.00298023198
2008	250000
2009	209999.993443489
2010	289999.99165535
2011	310000.002384186
2012	740000.009536743
2013	589999.973773956
2014	1000000
2015	720000.028610229
2016	2240000.00953674
2017	2109999.89509583
2018	509999.99046325695
2019	2710000.03814697
2020	319999.99284744303
2021	340000.00357627904
2022	209999.993443489