Year	Percent
2008-01-01	56.65940000000000
2009-01-01	62.25710000000000
2010-01-01	52.78780000000000
2011-01-01	67.16790000000000
2012-01-01	65.08640000000000
2013-01-01	68.09720000000000
2014-01-01	67.48899999999999
2015-01-01	59.25870000000000
2016-01-01	58.42370000000000