Year	current US$
1995	13435000000
1996	12830000000
1997	11018000000
1998	11241000000
1999	10847000000
2000	9899000000
2001	9948000000
2002	10803000000
2003	13307000000
2004	15150000000
2005	16243000000
2006	16512000000
2007	18557000000
2008	21630000000
2009	19168000000
2010	18751000000
2011	19791000000
2012	18931000000
2013	20221000000
2014	20913000000
2015	18292000000
2016	19244000000
2017	20333000000
2018	23233000000
2019	22983000000
2020	13881000000