Year	constant 2015 US$
2000	2337775455.35865
2001	2116996460.642048
2002	2879427195.3304496
2003	3317848732.0901012
2004	3207063768.9599175
2005	4195264549.1410966
2006	5214857129.559312
2007	7181031126.855737
2008	8516505401.7529745
2009	6008925125.998332
2010	6867822235.524612
2011	6010097886.563227
2012	6601605587.29376
2013	7718564568.099656
2014	8171359240.154632
2015	7474521276.595745
2016	8280316878.6837015
2017	9155850824.130566
2018	10017175275.29116
2019	9739885585.44759
2020	9369715440.744566
2021	8974939415.714998