Year	US Dollars adjusted for inflation)
1993	5084948751.55304
1994	3314947308.86254
1995	3643242084.68339
1996	3858102491.00526
1997	4012682038.43226
1998	4200541049.13779
1999	4734235799.13575
2000	5241366891.85216
2001	5631670884.44008
2002	6002175104.92402
2003	6512713850.50169
2004	7186162900.36652
2005	8138335730.42109
2006	9014922681.30467
2007	9935578323.29943
2008	10600425244.3636
2009	10609615490.7202
2010	11242275198.9783
2011	12037055707.6797
2012	12917367180.2477
2013	13867654629.7499
2014	14858161721.6852
2015	15903594933.6638
2016	17009386901.7797
2017	18168529608.2286