Year	current US$
1993	20079999.9237061
1994	12619999.8855591
1995	44479999.5422363
1996	37590000.1525879
1997	35939998.626709
1998	42009998.3215332
1999	26579999.9237061
2000	24180000.3051758
2001	34840000.1525879
2002	45569999.6948242
2003	29540000.915527303
2004	55650001.5258789
2005	55490001.6784668
2006	53229999.5422363
2007	44869998.9318848
2008	36259998.3215332
2009	48849998.4741211
2010	36049999.237060495
2011	32540000.915527303
2012	21909999.8474121
2013	10270000.4577637
2014	3099999.90463257
2015	2869999.8855590797
2016	2930000.0667572
2017	930000.007152557
2018	439999.997615814
2019	750000
2020	680000.007152557
2021	409999.99642372096
2022	579999.983310699