Year	Percent
1995	53.9012
1996	63.06485
1997	67.27272
1998	69.68656
1999	62.0842
2000	63.87263
2001	65.94938
2002	66.31963
2003	69.17185
2004	77.25923
2005	81.89336
2006	82.50847
2007	76.46966
2008	73.84767
2009	66.92091
2010	89.33442
2011	104.24007
2012	111.44773
2013	106.8637
2014	102.78053
2015	98.7054
2016	95.78917
2017	101.18509