Year	Percent
2003-01-01	57.4347806656636
2004-01-01	57.6431388569400
2005-01-01	55.9983378712254
2006-01-01	57.0795762471865
2007-01-01	56.9162047349018
2008-01-01	56.6207926324829
2009-01-01	55.0106573097158
2010-01-01	54.8155445768968
2011-01-01	54.4386225085285
2012-01-01	54.0169709210399
2013-01-01	52.7213569430819
2014-01-01	50.0875223738006