Year	US Dollars adjusted for inflation)
1991	61386.582
1992	62808.613
1993	65310.238
1994	67444.664
1995	68464.945
1996	69549.109
1997	70378.773
1998	71744.797
1999	73231.508
2000	74961.844
2001	76442.164
2002	77748.273
2003	79556.922
2004	80689.023
2005	82024.547
2006	83291.961
2007	84595.984
2008	83064.242
2009	80441.781
2010	81611.922
2011	82589.664
2012	82645.766
2013	83159.953
2014	83821.953
2015	84433.57
2016	84890.961
2017	85467.07
2018	85911.594
2019	86867.102
2020	88244.695
2021	89833.703
2022	91500.836