Year	current US$
1995	312000000
1996	314000000
1997	355000000
1998	654000000
1999	747000000
2000	764000000
2001	836000000
2002	1018000000
2003	1467000000
2004	1935000000
2005	1858000000
2006	2099000000
2007	2142000000
2008	2602000000
2009	1955000000
2010	975000000
2011	1063000000
2012	1096000000
2013	1342000000
2014	1459000000
2015	1346000000
2016	1636000000
2017	2047000000
2018	2247000000
2019	2196000000
2020	1263000000