Year	current US$
1995	4548000000
1996	4844000000
1997	4529000000
1998	4623000000
1999	6472000000
2000	6592000000
2001	6887000000
2002	6935000000
2003	8193000000
2004	9208000000
2005	9845000000
2006	10311000000
2007	11015000000
2008	12020000000
2009	11461000000
2010	11393000000
2011	12750000000
2012	12498000000
2013	13384000000
2014	13918000000
2015	7865000000
2016	7648000000
2017	8396000000
2018	8880000000
2019	8900000000
2020	6603000000