Year	US Dollars adjusted for inflation)
1991	47611.711
1992	48080.391
1993	48154.441
1994	49183.832
1995	50415.168
1996	51518.164
1997	53329.773
1998	54407.266
1999	55468.695
2000	57640.57
2001	58326.762
2002	59337.656
2003	60885.91
2004	63404.418
2005	65158.75
2006	67746.688
2007	70074.734
2008	70188.898
2009	67025.852
2010	69146.977
2011	70726.008
2012	71154.695
2013	71862.047
2014	72868.414
2015	73796.711
2016	74683.914
2017	76473.195
2018	78300.773
2019	80011.219
2020	81644.906
2021	83380.586
2022	85096.625