Year	US Dollars adjusted for inflation)
1991	27317.984
1992	52623.375
1993	74150.289
1994	83575.094
1995	89806.312
1996	87661.797
1997	85214.133
1998	82281.391
1999	75491.969
2000	74921.016
2001	73178.562
2002	73661.047
2003	84304.875
2004	90941.422
2005	96217.859
2006	97560.555
2007	97496.055
2008	93559.734
2009	80486.812
2010	72932.625
2011	75889.094
2012	75321.727
2013	71188.297
2014	67236.211
2015	65095.086
2016	67006.586
2017	65146.168
2018	65906.227
2019	67629.867
2020	68786.32
2021	70642.242
2022	72221.164