Year	Percent
2003-01-01	82.3022212632740
2004-01-01	82.0482942547520
2005-01-01	83.2939102157967
2006-01-01	84.5999319761690
2007-01-01	85.2942500815098
2008-01-01	83.6717643985733
2009-01-01	76.8962044959428
2010-01-01	76.9501984126984
2011-01-01	76.6761014611340
2012-01-01	77.4188857547755
2013-01-01	78.9213827045723