Year	US Dollars adjusted for inflation)
1994	698.56429
1995	866.94067
1996	1665.59537
1997	2255.05737
1998	2608.19884
1999	2852.02104
2000	3002.82084
2001	3131.1394
2002	3293.14025
2003	3421.74843
2004	3628.51644
2005	3946.05668
2006	4160.5631
2007	4405.28506
2008	4664.0918
2009	4545.22767
2010	4614.82904
2011	4700.88784
2012	4714.22721
2013	4882.80367
2014	4992.94887
2015	5190.29378
2016	5382.62415
2017	5561.28795