Year	current US$
1995	416000000
1996	576000000
1997	662000000
1998	625000000
1999	651000000
2000	866000000
2001	983000000
2002	1027000000
2003	999000000
2004	1075000000
2005	1351000000
2006	1279000000
2007	1456000000
2008	1678000000
2009	1530000000
2010	1746000000
2011	1872000000
2012	2286000000
2013	2848000000
2014	2950000000
2015	2570000000
2016	2520000000
2017	2807000000
2018	2844000000
2019	2419000000
2020	811000000