Year	Percent
2005-01-01	51.0348105161984
2006-01-01	53.2066388082511
2007-01-01	54.4178833966150
2008-01-01	55.7476708644682
2009-01-01	55.3539424077959
2010-01-01	58.0055375476203
2011-01-01	59.7411045611120
2012-01-01	62.7156658323421
2013-01-01	63.9461032918216
2014-01-01	64.2378700441240
2015-01-01	64.4919588633069
2016-01-01	63.8129078928909
2017-01-01	65.2660623365382