Year	current US$
1995	565000000
1996	567000000
1997	597000000
1998	592000000
1999	689000000
2000	599000000
2001	488000000
2002	440000000
2003	766000000
2004	1080000000
2005	1438000000
2006	1846000000
2007	2177000000
2008	2501000000
2009	2269000000
2010	2544000000
2011	3114000000
2012	3076000000
2013	3062000000
2014	3145000000
2015	2736000000
2016	2496000000
2017	2810000000
2018	2946000000
2019	2725000000
2020	666000000