Year	current US$
1995	452000000
1996	565000000
1997	597000000
1998	668000000
1999	702000000
2000	657000000
2001	661000000
2002	737000000
2003	883000000
2004	1111000000
2005	1229000000
2006	1361000000
2007	1416000000
2008	1643000000
2013	2022000000
2014	2278000000
2015	1893000000
2016	1911000000
2017	2124000000
2018	2326000000
2019	2310000000
2020	865000000