Year	current US$
1995	689000000
1996	670000000
1997	603000000
1998	351000000
1999	306000000
2000	394000000
2001	419000000
2002	400000000
2003	523000000
2004	607000000
2005	1324000000
2006	1675000000
2007	2073000000
2008	2626000000
2009	1688000000
2010	1631000000
2011	2016000000
2012	1904000000
2013	2307000000
2014	2388000000
2015	2229000000
2016	2474000000
2017	3553000000
2018	3879000000
2019	4240000000
2020	1611000000