Year	Percent
2000	68.7176
2001	69.3849
2002	70.05295
2003	70.72174
2004	71.39128
2005	72.06156
2006	72.73259
2007	73.40436
2008	74.07688
2009	74.75014
2010	75.42415
2011	76.0989
2012	76.77439
2013	76.77439
2014	76.77439
2015	76.77439
2016	76.77439