Year	Percent
1995	87.81047
1996	87.5162
1997	86.32051
1999	94.28401
2000	93.94402
2001	95.07463
2002	92.27881
2003	97.41012
2004	90.14572
2005	93.21056
2007	86.09427
2008	88.53762
2009	90.27855
2010	97.06419
2011	90.53455
2012	92.66967
2013	94.2889
2014	99.17238
2015	96.37719
2016	93.4295