Year	US Dollars adjusted for inflation)
1991	43793.156
1992	44678.062
1993	46003.715
1994	48561.043
1995	50442.621
1996	52182.684
1997	55313.914
1998	55765.191
1999	61379.098
2000	65186.699
2001	64646.422
2002	64884.559
2003	64020.242
2004	66712.305
2005	68462.734
2006	66033.328
2007	67129.188
2008	68448.633
2009	68667.219
2010	69041.742
2011	72964.141
2012	73261.836
2013	73732.281
2014	71155.516
2015	70512.25
2016	70390.07
2017	72236.633
2018	74435.648
2019	76465.805
2020	78284.32
2021	80065.516
2022	81772.602