Year	current US$
1971	9999.99977648258
1972	19999.9995529652
1973	29999.999329447703
1974	29999.999329447703
1975	39999.9991059303
1981	230000.004172325
1986	270000.010728836
1989	9999.99977648258
1990	59999.9986588955
1991	400000.00596046395
1992	230000.004172325
1993	109999.999403954
1996	9999.99977648258
1997	9999.99977648258
1999	50000.0007450581
2000	79999.9982118607
2001	180000.00715255702
2002	189999.99761581398
2003	250000
2004	370000.00476837205
2005	680000.007152557
2006	460000.00834465
2007	1139999.98569489
2008	469999.998807907
2009	560000.002384186
2010	189999.99761581398
2011	170000.00178813902
2012	159999.99642372102
2013	200000.00298023198
2014	200000.00298023198
2015	150000.005960464
2016	129999.995231628
2017	119999.997317791
2018	170000.00178813902
2019	150000.005960464
2020	129999.995231628
2021	119999.997317791
2022	119999.997317791