Year	current US$
1995	270000000
1996	379000000
1997	319000000
1998	377000000
1999	458000000
2000	312000000
2001	319000000
2002	369000000
2003	120000000
2004	203000000
2005	355000000
2006	542000000
2007	1024000000
2008	1119000000
2009	1002000000
2010	1105000000
2011	626000000
2012	883000000
2013	700000000
2014	771000000
2015	832000000
2016	661000000
2017	861000000
2018	1089000000
2019	1226000000
2020	476000000