Year	Percent
2005-01-01	5.8864300000000010
2006-01-01	4.5893800000000000
2007-01-01	3.9487500000000000
2008-01-01	3.2065900000000003
2009-01-01	3.3671900000000003
2010-01-01	3.2123600000000000
2011-01-01	2.1540400000000000
2012-01-01	3.6784199999999996
2013-01-01	4.8604199999999995
2014-01-01	6.0926200000000000
2015-01-01	5.4115400000000005
2016-01-01	6.0324100000000000