Year	Percent
2000	94.48881
2001	94.77049
2002	95.05218
2003	95.33386
2004	95.61555
2005	95.89723
2006	96.17891
2007	96.4606
2008	96.74228
2009	97.02397
2010	97.30565
2011	97.58734
2012	97.86902
2013	97.86902
2014	97.86902
2015	97.86902
2016	97.86902