Year	current US$
1976	1470000.02861023
1977	39999.9991059303
1978	1649999.97615814
1979	509999.99046325695
1980	610000.014305115
1981	519999.980926514
1983	289999.99165535
1984	2750000
1985	2690000.05722046
1986	4539999.96185303
1987	2410000.08583069
1988	10319999.6948242
1989	13550000.1907349
1990	10970000.2670288
1991	9149999.61853027
1992	7500000
1993	8890000.34332275
1994	7699999.80926514
1995	8970000.26702881
1996	9890000.34332275
1997	8029999.73297119
1998	8100000.38146973
1999	8659999.84741211
2000	6579999.92370605
2001	6730000.01907349
2002	7110000.1335144
2003	7480000.01907349
2004	8010000.22888184
2005	13819999.6948242
2006	17010000.2288818
2007	16079999.923706101
2008	14920000.076293899
2009	12569999.6948242
2010	15949999.8092651
2011	13300000.1907349
2012	16299999.2370605
2013	22389999.3896484
2014	19950000.762939498
2015	17229999.5422363
2016	17260000.2288818
2017	21690000.5340576
2018	30100000.3814697
2019	29629999.1607666
2020	28079999.9237061
2021	27690000.5340576
2022	25040000.915527303