Year	current US$
1970	79999.9982118607
1971	109999.999403954
1972	310000.002384186
1973	349999.99403953605
1974	579999.983310699
1975	1000000
1976	1110000.01430511
1977	2200000.04768372
1978	1529999.97138977
1979	2000000
1980	3150000.09536743
1981	2650000.09536743
1982	1649999.97615814
1983	9020000.45776367
1984	7480000.01907349
1985	4829999.92370605
1986	11500000
1987	13680000.3051758
1988	22350000.3814697
1989	36369998.9318848
1990	30889999.3896484
1991	35930000.3051758
1992	28360000.6103516
1993	34669998.1689453
1994	33069999.694824196
1995	57000000
1996	57049999.237060495
1997	59759998.3215332
1998	67550003.0517578
1999	27219999.3133545
2000	33250000
2001	73309997.55859381
2002	62590000.1525879
2003	50319999.6948242
2004	48060001.373291
2005	46680000.3051758
2006	34409999.8474121
2007	48259998.3215332
2008	41430000.3051758
2009	45560001.373291
2010	47540000.9155273
2011	53650001.5258789
2012	37509998.3215332
2013	21229999.5422363
2014	6400000.09536743
2015	1769999.98092651
2016	150000.005960464