Year	current US$
1978	1620000.00476837
1980	8739999.77111816
1981	1559999.9427795399
1982	2640000.10490417
1983	4420000.07629395
1984	2630000.1144409203
1985	1519999.98092651
1986	2190000.05722046
1987	25389999.3896484
1988	13529999.7329712
1989	3980000.01907349
1990	5599999.90463257
1991	4250000
1992	14399999.6185303
1993	4099999.90463257
1994	3980000.01907349
1995	4710000.03814697
1996	3759999.99046326
1997	1889999.98569489
1998	2170000.07629395
1999	5960000.03814697
2000	44099998.4741211
2001	31510000.2288818
2002	4010000.2288818406
2003	4920000.07629395
2004	3190000.05722046
2005	22760000.2288818
2006	20110000.6103516
2007	3130000.1144409203
2008	7190000.05722046
2009	3670000.07629395
2010	24969999.3133545
2011	5960000.03814697
2012	12659999.8474121
2013	8390000.34332275
2014	6349999.90463257
2015	5650000.09536743
2016	1250000
2017	9579999.92370605
2018	8340000.152587891
2019	11890000.3433228
2020	9390000.34332275
2021	2589999.91416931
2022	3470000.02861023