Year	current US$
1995	606000000
1996	809000000
1997	1051000000
1998	557000000
1999	674000000
2000	813000000
2001	732000000
2002	975000000
2003	960000000
2004	1157000000
2005	1518000000
2006	2138000000
2007	2474000000
2008	2391000000
2009	1320000000
2010	2022000000
2011	2275000000
2012	2289000000
2013	2811000000
2014	2944000000
2015	2687000000
2016	2574000000
2017	2762000000
2018	2889000000
2019	2600000000
2020	548000000