Year	Percent
2000	95.35525
2001	95.47203
2002	95.58881
2003	95.70559
2004	95.82237
2005	95.93915
2006	96.05593
2007	96.17271
2008	96.28949
2009	96.40627
2010	96.52305
2011	96.63983
2012	96.75661
2013	96.87339
2014	96.99017
2015	96.99017
2016	96.99017
2017	96.99017
2018	96.99017