Year	US Dollars adjusted for inflation)
1991	2018.121
1992	1905.38
1993	1915.77
1994	1934.606
1995	1898.269
1996	1981.056
1997	2020.627
1998	2131.527
1999	2208.209
2000	2156.663
2001	2441.083
2002	2455.483
2003	2620.789
2004	2590.546
2005	2578.706
2006	2534.714
2007	2485.935
2008	2406.083
2009	2331.683
2010	2258.291
2011	2184.543
2012	2062.999
2013	2012.605
2014	2032.146
2015	2121.377
2016	2215.063
2017	2291.486
2018	2369.746
2019	2444.901
2020	2522.172
2021	2593.949
2022	2670.006