Year	US Dollars adjusted for inflation)
2002	8013233121.55065
2003	8689883606.07776
2004	8781610175.40574
2005	9762978844.07633
2006	10305228125.1392
2007	11721187594.2052
2008	12144482858.18
2009	14697331940.6464
2010	15936800636.2487
2011	16911126453.2276
2012	19352203805.6294
2013	20107051005.0514
2014	20648035625.4122
2015	20918533234.6796
2016	21413614653.3241
2017	21969414112.4281