Year	current US$
1995	654000000
1996	1018000000
1997	591000000
1998	565000000
1999	447000000
2000	574000000
2001	555000000
2002	491000000
2003	1163000000
2004	1612000000
2005	1753000000
2006	2029000000
2007	2075000000
2008	2163000000
2009	1098000000
2010	1370000000
2011	1857000000
2012	1851000000
2013	1638000000
2014	2209000000
2015	2642000000
2016	2931000000
2017	3316000000
2018	2959000000
2019	2998000000
2020	1245000000