Year	current US$
1995	2514000000
1996	2779000000
1997	2684000000
1998	2823000000
1999	2574000000
2000	2852000000
2001	3207000000
2002	3412000000
2003	3750000000
2004	4147000000
2005	4997000000
2006	6074000000
2007	7267000000
2008	8341000000
2009	6799000000
2010	7106000000
2011	8879000000
2012	10073000000
2013	10567000000
2014	12280000000
2015	13148000000
2016	13232000000
2017	13722000000
2018	14318000000
2019	15839000000
2020	6696000000