Year	US Dollars adjusted for inflation)
1995	7313.7409
1996	7817.60464
1997	8840.26106
1998	9293.07551
1999	9186.39295
2000	10108.20529
2001	10816.60315
2002	11546.77265
2003	12481.18961
2004	13346.39831
2005	14681.22537
2006	16285.00672
2007	17627.02972
2008	16716.50316
2009	14282.6035
2010	14638.60482
2011	15798.63278
2012	16538.2126
2013	16918.58711
2014	17453.36713
2015	17733.95766
2016	18094.5873
2017	18977.3944