Year	Percent
2005-01-01	8.36843944650000
2006-01-01	8.14529851583334
2007-01-01	8.46376143758334
2008-01-01	8.93582611625000
2009-01-01	11.50513806550000
2010-01-01	10.67302903041670
2011-01-01	11.09271932800000
2012-01-01	10.66173743475000
2013-01-01	10.91375998458330
2014-01-01	10.74451687733330
2015-01-01	10.19829249091670
2016-01-01	8.76339464558333
2017-01-01	7.97211758566667