Year	Percent
2005-01-01	4.6640700000000000
2006-01-01	6.5957000000000000
2007-01-01	7.8938300000000000
2008-01-01	7.7564699999999990
2009-01-01	9.3881700000000000
2010-01-01	8.9254100000000010
2011-01-01	7.1200100000000010
2012-01-01	6.6009000000000000
2013-01-01	6.1754100000000000
2014-01-01	6.0846800000000005
2015-01-01	7.5343200000000000
2016-01-01	7.6720000000000010