Year	current US$
1995	1085000000
1996	744000000
1997	1025000000
1998	1398000000
1999	1718000000
2000	1969000000
2001	1844000000
2002	2142000000
2003	2673000000
2004	3389000000
2005	4168000000
2006	4577000000
2007	5284000000
2008	6109000000
2009	5635000000
2010	5522000000
2011	6370000000
2012	6623000000
2013	6784000000
2014	7405000000
2015	6254000000
2016	6613000000
2017	6175000000
2018	6324000000
2019	6127000000
2020	3099000000