Year	current US$
1995	313000000
1996	320000000
1997	374000000
1998	375000000
1999	398000000
2000	451000000
2001	475000000
2002	657000000
2003	664000000
2004	666000000
2005	857000000
2006	883000000
2007	1088000000
2008	1071000000
2009	832000000
2010	461000000
2011	917000000
2012	903000000
2013	1088000000
2014	1077000000
2015	881000000
2016	1075000000
2017	1311000000
2018	1707000000
2019	2008000000
2020	608000000