Year	current US$
1996	67090000
1997	639730000
1998	328350000
1999	86200000
2000	116360000
2001	52600000
2002	117660000
2003	124010000
2004	188230000
2005	902100000
2006	2010570000
2007	967400000
2008	1711280000
2009	1040920000.0000001
2010	1877260000
2011	511490000
2012	408000000
2013	156900000
2014	624400000
2015	505220000
2016	902710000
2017	609983808.2367309
2018	377170000
2019	195970000
2020	232340000
2021	353070000
2022	14110000