Year	constant 2015 US$
2000	4179229275.078951
2001	4879486864.455593
2002	5247715248.321827
2003	5782444841.823642
2004	6552758197.000836
2005	7117513170.848015
2006	7838358665.33601
2007	8635572898.726862
2008	9615983099.77826
2009	10467818774.840616
2010	11189671912.744017
2011	12014169923.784525
2012	14261886440.618687
2013	15287009782.785349
2014	16069928444.438538
2015	17007757584.131247
2016	17784033860.37595