Year	current US$
1975	29999.999329447703
1976	29999.999329447703
1978	9999.99977648258
1979	39999.9991059303
1981	1730000.01907349
1982	1350000.02384186
1983	1269999.98092651
1984	1679999.94754791
1985	1470000.02861023
1986	1710000.03814697
1987	2309999.94277954
1988	1580000.04291534
1989	2900000.09536743
1990	3450000.04768372
1991	2720000.02861023
1992	3359999.89509583
1993	2430000.0667572
1994	5809999.94277954
1995	6429999.82833862
1996	3799999.95231628
1997	4820000.17166138
1998	3869999.8855590797
1999	2829999.92370605
2000	4329999.92370605
2001	1799999.95231628
2002	1950000.04768372
2003	2900000.09536743
2004	2009999.9904632599
2005	2500000
2006	3049999.95231628
2007	2539999.96185303
2008	2750000
2009	2529999.97138977
2010	4360000.1335144
2011	430000.00715255697
2012	540000.021457672
2013	219999.998807907
2014	259999.990463257
2015	540000.021457672
2016	180000.00715255702
2017	9999.99977648258
2018	9999.99977648258
2019	9999.99977648258
2020	1049999.95231628
2021	270000.010728836