Year	Percent
1995	94.19587
1996	95.55502
1997	96.81429
1999	97.58925
2000	95.20692
2001	93.2981
2002	97.10663
2003	91.85293
2004	91.84253
2005	93.34923
2006	89.66797
2007	90.32994
2008	91.4461
2009	90.89656
2013	89.03082
2014	90.07704
2015	91.12745