Year	US Dollars adjusted for inflation)
1991	52228.148
1992	56709.824
1993	58233.73
1994	59658.293
1995	59288.742
1996	51416.008
1997	49975.082
1998	47552.461
1999	46260.645
2000	47985.336
2001	46965.375
2002	50668.578
2003	55609.285
2004	65885.102
2005	66810.961
2006	70753.641
2007	74876.422
2008	73857.406
2009	72568.516
2010	87235.75
2011	102480.773
2012	108960.188
2013	117853.875
2014	112628.516
2015	87072.734
2016	85063.953
2017	91312.977
2018	94611.75
2019	97072.039
2020	99389.203
2021	101459.492
2022	103234.672