Year	current US$
1971	200000.00298023198
1977	19999.9995529652
1979	29999.999329447703
1980	600000.023841858
1981	649999.976158142
1982	620000.004768372
1983	779999.971389771
1984	1179999.94754791
1985	529999.971389771
1986	389999.98569488496
1987	3039999.96185303
1988	319999.99284744303
1989	790000.021457672
1990	460000.00834465
1991	639999.985694885
1992	449999.988079071
1993	1639999.98569489
1994	389999.98569488496
1995	209999.993443489
1996	949999.988079071
1997	259999.990463257
1998	600000.023841858
1999	419999.986886978
2000	29999.999329447703
2001	29999.999329447703
2003	39999.9991059303
2004	19999.9995529652
2005	50000.0007450581
2006	19999.9995529652
2007	39999.9991059303
2008	9999.99977648258
2011	19999.9995529652
2012	0
2013	9999.99977648258
2018	9999.99977648258
2019	19999.9995529652
2020	9999.99977648258
2021	19999.9995529652
2022	39999.9991059303