Year	current US$
1995	911000000
1996	1265000000
1997	1716000000
1998	1754000000
1999	1471000000
2000	1713000000
2001	1738000000
2002	1880000000
2003	2113000000
2004	2524000000
2005	3104000000
2006	2989000000
2007	3649000000
2008	3824000000
2009	4575000000
2010	5194000000
2011	4883000000
2012	4094000000
2013	4817000000
2014	5072000000
2015	5368000000
2016	4783000000
2017	4823000000
2018	4595000000
2019	4110000000
2020	1040000000