Year	current US$
1966	19999.9995529652
1968	9999.99977648258
1971	9999.99977648258
1973	79999.9982118607
1974	340000.00357627904
1975	209999.993443489
1976	19999.9995529652
1977	9999.99977648258
1978	9999.99977648258
1979	779999.971389771
1980	3869999.8855590797
1981	100000.00149011599
1982	200000.00298023198
1983	230000.004172325
1985	119999.997317791
1986	389999.98569488496
1987	100000.00149011599
1988	250000
1989	239999.994635582
1990	620000.004768372
1991	2750000
1992	1470000.02861023
1993	1340000.0333786
1994	2220000.02861023
1995	2170000.07629395
1996	1950000.04768372
1997	1460000.03814697
1998	2900000.09536743
1999	1460000.03814697
2000	1840000.0333786
2001	2970000.02861023
2002	3230000.01907349
2003	3190000.05722046
2004	3539999.96185303
2005	3630000.1144409203
2006	2900000.09536743
2007	4030000.2098083496
2008	3950000.04768372
2009	3160000.08583069
2010	3480000.01907349
2011	7579999.92370605
2012	5920000.07629395
2013	9699999.80926514
2014	13390000.3433228
2015	14739999.7711182
2016	17219999.3133545
2017	18760000.2288818
2018	16680000.3051758
2019	16500000
2020	19290000.915527303
2021	19729999.5422363
2022	17379999.1607666