Year	constant 2010 US$
2000	8013510638.29787
2001	7763377659.57447
2002	9246356382.97872
2003	9285718085.10638
2004	9377260638.29787
2005	10182553191.4894
2006	10450797872.3404
2007	10915053191.4894
2008	12857712765.9574
2009	11164893617.0213
2010	13097074468.0851
2011	18513297872.3404
2012	23643617021.2766
2013	24375000000
2014	22577127659.5745
2015	21316489361.7021
2016	20584069148.9362
2017	22191489361.7021
2018	23101340425.5319