Year	US Dollars adjusted for inflation)
1995	15062.81794
1996	15602.2229
1997	16422.24551
1998	16998.85709
1999	17882.65865
2000	18570.69607
2001	19088.32622
2002	19796.06709
2003	20346.41582
2004	21218.25215
2005	22029.43035
2006	23201.25791
2007	24673.44469
2008	25447.4259
2009	23252.097
2010	23437.47202
2011	23540.71462
2012	22864.20508
2013	22574.7091
2014	23224.40106
2015	23731.16728
2016	24460.3979
2017	25662.41491