Year	US Dollars adjusted for inflation)
1991	1587.139
1992	1576.321
1993	1605.176
1994	1575.904
1995	1610.615
1996	1628.678
1997	1670.364
1998	1684.656
1999	1721.625
2000	1767.298
2001	1806.932
2002	1834.347
2003	1835.193
2004	1854.642
2005	1826.779
2006	1845.832
2007	1902.674
2008	1941.453
2009	1932.321
2010	1919.22
2011	1954.67
2012	1987.609
2013	2066.494
2014	2130.947
2015	2108.404
2016	2126.146
2017	2174.01
2018	2237.476
2019	2311.177
2020	2393.675
2021	2487.108
2022	2562.187