Year	current US$
1995	323000000
1996	336000000
1997	348000000
1998	409000000
1999	447000000
2000	479000000
2001	360000000
2002	341000000
2003	349000000
2004	401000000
2005	463000000
2006	479000000
2007	625000000
2008	586000000
2009	363000000
2010	418000000
2011	400000000
2012	422000000
2013	425000000
2014	450000000
2015	690000000
2016	803000000
2017	1044000000
2018	838000000
2019	950000000
2020	300000000