Year	Percent
2003-01-01	57.4261249575899
2004-01-01	57.6498294497009
2005-01-01	56.0001339673656
2006-01-01	57.0750918745723
2007-01-01	56.9206545757314
2008-01-01	56.6232399791528
2009-01-01	55.0114796059905
2010-01-01	54.8254835077148
2011-01-01	54.4434776843176
2012-01-01	54.0218956491587
2013-01-01	52.7246221164326
2014-01-01	50.0824535167858