Year	current US$
1968	4219999.79019165
1969	3480000.01907349
1970	3789999.96185303
1971	4400000.09536743
1972	4800000.19073486
1973	4349999.90463257
1974	4789999.96185303
1975	4900000.09536743
1976	2450000.04768372
1977	8159999.847412109
1978	6619999.88555908
1979	1389999.98569489
1981	980000.019073486
1982	200000.00298023198
1983	3980000.01907349
1984	2920000.07629395
1985	2559999.94277954
1986	4570000.17166138
1987	4400000.09536743
1988	3690000.05722046
1989	3920000.07629395
1990	5110000.1335144
1991	5829999.92370605
1992	2480000.01907349
1993	2049999.9523162802
1994	1669999.95708466
1995	340000.00357627904
1996	1909999.9666214
1997	1539999.96185303
1998	850000.023841858
1999	289999.99165535
2000	610000.014305115
2001	1159999.9666214
2002	879999.995231628
2003	800000.011920929
2004	1159999.9666214
2005	600000.023841858
2006	709999.978542328
2007	829999.983310699
2008	1320000.05245209
2009	1070000.05245209
2010	769999.980926514
2011	660000.026226044
2012	541183.2332611079
2013	761016.011238098
2014	1017585.63518524
2015	712446.868419647
2016	341195.851564407
2017	311997.950077057
2018	170528.501272202
2019	358029.991388321
2020	285421.997308731
2021	893123.1498718259
2022	660144.2694664