Year	current US$
1995	2880000000
1996	4079000000
1997	3620000000
1998	3894000000
1999	3153000000
2000	2973000000
2001	3104000000
2002	2964000000
2003	3566000000
2004	4187000000
2005	4813000000
2006	5884000000
2007	6943000000
2008	8214000000
2009	7241000000
2010	7172000000
2011	8096000000
2012	7456000000
2013	7042000000
2014	6822000000
2015	6056000000
2016	6308000000
2017	6970000000
2018	7446000000
2019	7302000000
2020	3632000000