Year	US Dollars adjusted for inflation)
1991	75377.281
1992	75048.547
1993	75036.492
1994	75662.023
1995	77644.789
1996	79616.977
1997	79818.781
1998	79524.352
1999	80053.336
2000	82518.742
2001	83291.508
2002	84306.281
2003	85671.531
2004	87452.594
2005	88532.273
2006	89425
2007	90231.258
2008	89444.086
2009	85784.141
2010	89732.523
2011	89944.258
2012	91453.477
2013	92436.633
2014	92035.617
2015	92701.734
2016	92819.273
2017	94697.789
2018	96303.234
2019	97644.086
2020	98388.938
2021	99906.07
2022	101428.945