Year	current US$
1995	2853000000
1996	2760000000
1997	2541000000
1998	2565000000
1999	2525000000
2000	2293000000
2001	2442000000
2002	2440000000
2003	2956000000
2004	3385000000
2005	3620000000
2006	4099000000
2007	4812000000
2008	5577000000
2009	5236000000
2010	5268000000
2011	6013000000
2012	5841000000
2013	6387000000
2014	6326000000
2015	5786000000
2016	6199000000
2017	6740000000
2018	7223000000
2019	6841000000
2020	1940000000