Year	Percent
2004-01-01	13.631400000000000
2005-01-01	8.500360000000000
2006-01-01	11.713300000000000
2007-01-01	12.081100000000000
2008-01-01	8.436739999999999
2009-01-01	9.400610000000000
2010-01-01	8.101660000000000
2011-01-01	8.930500000000000
2012-01-01	9.677660000000001
2013-01-01	7.147539999999999
2014-01-01	7.147539999999999
2015-01-01	7.147539999999999
2016-01-01	4.819030000000001