Year	Percent
2005-01-01	2.3294799999999998
2006-01-01	4.2186100000000000
2007-01-01	13.4150000000000000
2008-01-01	11.7620000000000000
2009-01-01	13.2803000000000000
2010-01-01	16.3137000000000000
2011-01-01	5.7921200000000000
2012-01-01	13.3778000000000000
2013-01-01	6.4029800000000000
2014-01-01	6.6071600000000000
2015-01-01	8.9515200000000000
2016-01-01	7.4844300000000010