Year	US Dollars adjusted for inflation)
1991	9522.442
1992	8633.229
1993	8737.991
1994	9074.229
1995	9742.803
1996	10329.801
1997	9707.527
1998	9702.515
1999	9776.997
2000	10205.51
2001	10985.714
2002	12888.93
2003	13821.537
2004	15206.365
2005	16263.729
2006	17374.406
2007	18641.598
2008	20422.043
2009	19469.875
2010	19082.244
2011	19765.74
2012	19745.387
2013	20652.436
2014	21193.516
2015	22269.271
2016	23524.504
2017	25079.375
2018	26313.57
2019	27223.277
2020	27835.143
2021	28463.25
2022	29087.811