Year	current US$
1993	13590000.1525879
1994	17930000.3051758
1995	20030000.6866455
1996	13670000.076293899
1997	19790000.915527303
1998	21989999.7711182
1999	15859999.6566772
2000	14729999.5422363
2001	16989999.7711182
2002	17479999.5422363
2003	15590000.1525879
2004	15939999.5803833
2005	14390000.3433228
2006	14109999.6566772
2007	15699999.8092651
2008	18850000.3814697
2009	36139999.3896484
2010	24739999.7711182
2011	38169998.1689453
2012	-29370000.8392334
2013	22930000.3051758
2014	9630000.11444092
2015	9729999.54223633
2016	7170000.07629395
2017	6809999.94277954
2018	4639999.8664856
2019	4250000
2020	3410000.08583069
2021	4440000.05722046
2022	5530000.20980835