Year	Measure
1990	4380.90097
1991	4426.03492
1992	3912.88175
1993	3450.23928
1994	3068.34849
1995	2789.97449
1996	2806.49606
1997	2953.04932
1998	3016.28762
1999	3005.36426
2000	2996.30948
2001	3009.40248
2002	3000.74563
2003	3063.05694
2004	3174.05309
2005	3245.37209
2006	3365.98187
2007	3393.90854
2008	3481.74352
2009	3298.70361
2010	3563.63777
2011	3628.45729
2012	3697.39748
2013	3648.32146
2014	3679.97884