Year	current US$
1964	-119999.997317791
1966	-39999.9991059303
1977	9999.99977648258
1978	19999.9995529652
1979	9999.99977648258
1980	19999.9995529652
1981	9999.99977648258
1982	9999.99977648258
1983	19999.9995529652
1984	19999.9995529652
1985	9999.99977648258
1986	29999.999329447703
1987	9999.99977648258
1988	39999.9991059303
1989	39999.9991059303
1990	70000.0002980232
1991	70000.0002980232
1992	59999.9986588955
1993	70000.0002980232
1994	70000.0002980232
1995	39999.9991059303
1996	59999.9986588955
1997	29999.999329447703
1998	19999.9995529652
1999	29999.999329447703
2000	19999.9995529652
2001	9999.99977648258
2002	19999.9995529652
2003	29999.999329447703
2004	19999.9995529652
2005	9999.99977648258
2008	29999.999329447703
2012	9999.99977648258
2015	29999.999329447703
2016	29999.999329447703
2017	29999.999329447703