Year	current US$
1993	400000
1994	416600000
1995	348100000
1996	494100000
1997	519740000
1998	806050000
1999	848370000
2000	638860000
2001	965680000
2002	926520000
2003	500240000
2004	771260000
2005	476050000
2006	1056369999.9999999
2007	2936580000
2008	1352320000
2009	1032859999.9999999
2010	484040000
2011	512100000
2012	399910000
2013	412580000
2014	735840000
2015	364530000
2016	305770690.96431303
2017	400826169.048372
2019	149940000
2020	462050000
2021	361430000
2022	415480000