Year	Percent
2005-01-01	62.4495363550552
2006-01-01	62.9844335345537
2007-01-01	62.6302322838655
2008-01-01	62.2165462967931
2009-01-01	60.7976637387777
2010-01-01	61.2135045943514
2011-01-01	60.7259021610542
2012-01-01	60.8258006546358
2013-01-01	59.8019377658741
2014-01-01	58.8788331166069
2015-01-01	57.9364030128703
2016-01-01	57.2276462982614
2017-01-01	56.7324488934263