Year	constant 2010 US$
2001	17037347.4274483
2002	16689641.8594593
2003	16956549.3934713
2004	17644289.811645
2005	17948321.132645
2006	19256073.1068138
2007	19744628.4973104
2008	21922978.6493573
2009	22774746.9849826
2010	22952033.4689797
2011	23625190.0768821
2012	24056036.0392662
2013	24030702.0134786
2014	25081141.6733367
2015	25906004.3715432
2016	26420550.9163594
2017	27117843.6928287
2018	26815476.2414621