Year	US Dollars adjusted for inflation)
1991	34827.25
1992	37040.711
1993	39233.547
1994	41499.883
1995	43780.215
1996	46542.164
1997	48952.895
1998	50590.984
1999	53640.805
2000	56687.367
2001	56593.605
2002	59387.121
2003	60998.918
2004	63389.535
2005	65687.117
2006	68096.18
2007	71291.938
2008	71142.609
2009	70955.789
2010	76946.211
2011	78086.688
2012	78445.711
2013	79363.484
2014	81672.414
2015	81395.18
2016	82654.148
2017	84860.258
2018	86475.469
2019	88586.312
2020	90640.914
2021	92731.719
2022	94960.203