Year	current US$
2000	18225673158.4205
2001	19760890432.570118
2002	24635655391.552094
2003	27042044870.51836
2004	32586181629.497593
2005	38649464922.79571
2006	45858407309.654
2007	58724158263.05183
2008	72286360502.77243
2009	60082773969.4769
2010	71420190444.01807
2011	77237036381.82292
2012	79772670391.4918
2013	85781851474.0364
2014	94441485760.90862
2015	96964142916.22699
2016	98683577156.54977
2017	111102900536.403
2018	121831731222.5977
2019	133692161691.43594