Year	current US$
1995	963000000
1996	1171000000
1997	1311000000
1998	1556000000
1999	1695000000
2000	1737000000
2001	1692000000
2002	1633000000
2003	1846000000
2004	1915000000
2005	2322000000
2006	2127000000
2007	2141000000
2008	2258000000
2009	2051000000
2010	2187000000
2011	2283000000
2012	2326000000
2013	2325000000
2014	2367000000
2015	2601000000
2016	2907000000
2017	3186000000
2018	2703000000
2019	2596000000
2020	1137000000