Year	current US$
1995	279000000
1996	267000000
1997	280000000
1998	326000000
1999	341000000
2000	383000000
2001	402000000
2002	438000000
2003	462000000
2004	499000000
2005	552000000
2006	666000000
2007	709000000
2008	777000000
2009	735000000
2010	828000000
2011	926000000
2012	1219000000
2013	1808000000
2014	1922000000
2015	2152000000
2016	2295000000
2017	2409000000
2018	2487000000
2019	2436000000
2020	803000000