Year	Percent
1995-01-01	38.927900000000000
1996-01-01	32.605900000000000
1997-01-01	33.239300000000000
1998-01-01	28.365900000000000
1999-01-01	33.261100000000000
2000-01-01	29.408500000000000
2001-01-01	28.854400000000000
2002-01-01	27.825500000000000
2003-01-01	27.143000000000000
2004-01-01	20.913200000000000
2005-01-01	19.767000000000000
2006-01-01	20.941800000000000
2007-01-01	22.467400000000000
2008-01-01	15.368700000000000
2009-01-01	21.139000000000000
2010-01-01	21.483900000000000
2011-01-01	17.600100000000000
2012-01-01	10.826400000000000
2013-01-01	11.340800000000000
2014-01-01	16.601000000000000
2015-01-01	13.378300000000000
2016-01-01	12.995999999999999