Year	Percent
2000	97.98621
2001	98.0473
2002	98.10839
2003	98.16948
2004	98.23056
2005	98.29165
2006	98.35274
2007	98.41383
2008	98.47491
2009	98.536
2010	98.59709
2011	98.65818
2012	98.71927
2013	98.78035
2014	98.78035
2015	98.78035