Year	current US$
1977	2940000.05722046
1978	9130000.11444092
1990	100000.00149011599
1992	259999.990463257
1993	13050000.1907349
1994	17690000.5340576
1995	15880000.1144409
1996	21909999.8474121
1997	20290000.915527303
1998	15220000.2670288
1999	13960000.038146999
2000	6909999.84741211
2001	12000000
2002	5679999.82833862
2003	3329999.92370605
2004	4800000.19073486
2005	2059999.94277954
2006	2789999.96185303
2007	2099999.90463257
2008	2609999.89509583
2009	16850000.3814697
2010	24899999.6185303
2011	4800000.19073486
2012	7500000
2013	12920000.076293899
2014	9760000.22888184
2015	14810000.4196167
2016	12369999.8855591
2017	11170000.076293899
2018	12470000.2670288
2019	20149999.6185303
2020	25540000.915527303
2021	25389999.3896484
2022	13800000.1907349