Year	US Dollars adjusted for inflation)
1995	4600.6696
1996	4861.85695
1997	5171.48016
1998	5457.24175
1999	5682.84546
2000	5777.21637
2001	5420.94822
2002	5670.46922
2003	6282.23185
2004	6485.02418
2005	5484.95025
2006	6736.81326
2007	7068.65177
2008	7537.63683
2009	6806.40505
2010	7100.4059
2011	7490.44521
2012	7458.86005
2013	7776.54393
2014	8124.70776
2015	8105.54025
2016	8416.94475
2017	8980.03398