Year	current US$
1971	50000.0007450581
1972	59999.9986588955
1973	100000.00149011599
1974	70000.0002980232
1975	150000.005960464
1976	200000.00298023198
1977	79999.9982118607
1978	209999.993443489
1979	400000.00596046395
1980	529999.971389771
1981	620000.004768372
1982	509999.99046325695
1983	490000.009536743
1984	250000
1985	200000.00298023198
1986	319999.99284744303
1987	550000.011920929
1988	1590000.0333786
1989	1120000.00476837
1990	699999.988079071
1991	1019999.98092651
1992	409999.99642372096
1993	150000.005960464
1994	310000.002384186
1995	219999.998807907
1996	19999.9995529652
1997	209999.993443489
1998	140000.000596046
1999	370000.00476837205
2000	109999.999403954
2001	140000.000596046
2002	59999.9986588955
2003	59999.9986588955
2011	150000.005960464
2012	122275.918722153
2013	112395.003437996
2014	121980.24243116399
2015	596557.259559631
2017	142081.91633224502
2018	42651.928961277