Year	current US$
1995	423000000
1996	462000000
1997	655000000
1998	725000000
1999	705000000
2000	283000000
2001	309000000
2002	276000000
2003	347000000
2004	486000000
2005	579000000
2006	687000000
2007	917000000
2008	752000000
2009	690000000
2010	800000000
2011	926000000
2012	935000000
2013	881000000
2014	811000000
2015	724000000
2016	824000000
2017	916000000
2018	1072000000
2019	1007000000