Year	US Dollars adjusted for inflation)
1996	31270.44626
1997	32598.33732
1998	34514.69704
1999	35427.86172
2000	36554.65752
2001	37488.69237
2002	37360.10183
2003	37976.67194
2004	40684.26369
2005	42604.4542
2006	43703.94719
2007	46629.65653
2008	46529.85102
2009	43354.76845
2010	41851.73548
2011	42543.14055
2012	42875.64555
2013	44301.75532
2014	44775.63537
2015	46221.93257
2016	48995.16855
2017	49910.00552