Year	Percent
1995	80.74166
1996	94.39353
1997	93.92038
1998	84.56134
1999	71.43978
2000	80.30878
2001	89.25526
2002	92.33555
2003	90.22699
2004	95.75552
2005	104.70546
2006	110.91704
2007	104.57534
2008	114.40814
2009	92.83517
2010	118.93946
2011	137.5978
2012	143.70726
2013	145.21268
2014	137.5993
2015	129.11206
2016	122.42166
2017	132.18708