Year	current US$
1994	29579999.9237061
1995	12819999.6948242
1996	13010000.2288818
1997	22709999.084472697
1998	5559999.94277954
1999	19620000.8392334
2000	33540000.915527303
2001	35040000.9155273
2002	24479999.5422363
2003	34869998.9318848
2004	39430000.3051758
2005	35470001.220703095
2006	44290000.9155273
2007	33470001.220703095
2008	39430000.3051758
2009	22940000.5340576
2010	17590000.1525879
2011	22989999.7711182
2012	18840000.1525879
2013	13710000.038146999
2014	18299999.237060502
2015	11060000.4196167
2016	10739999.7711182
2017	13460000.038146999
2018	14109999.6566772
2019	15840000.1525879
2020	14359999.6566772
2021	14670000.076293899
2022	13149999.6185303