Year	current US$
1995	822000000
1996	781000000
1997	894000000
1998	941000000
1999	955000000
2000	1206000000
2001	1234000000
2002	1195000000
2003	1257000000
2004	1356000000
2005	1432000000
2006	1468000000
2007	1513000000
2008	1157000000
2009	1021000000
2010	1223000000
2011	1122000000
2012	1210000000
2013	1168000000
2014	1319000000
2015	1324000000
2016	1343000000
2017	1202000000
2018	993000000
2019	1031000000
2020	686000000