Year	US Dollars adjusted for inflation)
2002	3980912284.83848
2003	3967611883.98962
2004	4084246168.35652
2005	4232596793.20915
2006	4386062956.8498
2007	4563060598.91535
2008	4606031124.73473
2009	4300121905.21103
2010	4339000000
2011	3985004715.8689
2012	3386486677.67036
2013	3190049988.21033
2014	3159356755.4822
2015	3165495402.02782