Year	current US$
1972	29999.999329447703
1973	100000.00149011599
1974	289999.99165535
1975	610000.014305115
1976	460000.00834465
1977	910000.026226044
1978	1230000.01907349
1979	1470000.02861023
1980	1929999.94754791
1981	1559999.9427795399
1982	1590000.0333786
1983	1450000.04768372
1984	1639999.98569489
1985	1639999.98569489
1986	1100000.02384186
1987	639999.985694885
1988	1360000.01430511
1989	1419999.95708466
1990	1419999.95708466
1991	1610000.01430511
1992	2019999.9809265102
1993	939999.997615814
1994	4920000.07629395
1995	3700000.04768372
1996	3880000.1144409203
1997	4130000.11444092
1998	5960000.03814697
1999	3210000.03814697
2000	3980000.01907349
2001	4809999.94277954
2002	4170000.07629395
2003	4500000
2004	7119999.88555908
2005	3319999.9332428
2006	200000.00298023198
2008	4639999.8664856
2009	219999.998807907
2010	19149999.6185303
2011	13869999.8855591
2012	16709999.0844727
2013	6789999.96185303
2014	2549999.95231628
2015	930000.007152557
2017	19999.9995529652
2021	349999.99403953605