Year	current US$
1972	9999.99977648258
1976	59999.9986588955
1977	9999.99977648258
1978	50000.0007450581
1979	19999.9995529652
1981	70000.0002980232
1982	100000.00149011599
1983	949999.988079071
1984	1529999.97138977
1985	469999.998807907
1986	419999.986886978
1987	300000.011920929
1988	170000.00178813902
1989	300000.011920929
1990	200000.00298023198
1991	460000.00834465
1992	9999.99977648258
1997	9999.99977648258
1998	9999.99977648258
2008	70000.0002980232
2009	119999.997317791
2010	79999.9982118607
2011	59999.9986588955
2013	129999.995231628
2014	119999.997317791
2016	140000.000596046
2017	100000.00149011599
2018	9999.99977648258