Year	current US$
1995	749000000
1996	716000000
1997	699000000
1998	504000000
1999	428000000
2000	447000000
2001	475000000
2002	448000000
2003	572000000
2004	672000000
2005	1071000000
2006	1457000000
2007	1723000000
2008	2407000000
2009	1766000000
2010	1897000000
2011	2294000000
2012	2108000000
2013	2125000000
2014	2741000000
2015	2526000000
2016	2910000000
2017	4955000000
2018	6109000000
2019	7172000000
2020	3472000000