Year	current US$
1995	593000000
1996	589000000
1997	578000000
1998	625000000
1999	785000000
2000	854000000
2001	886000000
2002	985000000
2003	1206000000
2004	1504000000
2005	1603000000
2006	1786000000
2007	1854000000
2008	1927000000
2009	1873000000
2010	2163000000
2011	1766000000
2012	1752000000
2013	1875000000
2014	1913000000
2015	2827000000
2016	4021000000
2017	4380000000
2018	3834000000
2019	3860000000
2020	724000000