Year	Percent
2001-01-01	11.0197000000000000
2002-01-01	6.4593600000000000
2003-01-01	5.0348800000000000
2004-01-01	4.8650199999999995
2005-01-01	6.8994399999999990
2006-01-01	7.5487400000000000
2007-01-01	7.5506800000000010
2008-01-01	8.4191000000000000
2009-01-01	6.7629300000000000
2010-01-01	6.5752000000000000
2011-01-01	6.8229600000000010
2012-01-01	6.5677800000000000
2013-01-01	6.2274100000000000
2014-01-01	5.9361100000000000
2015-01-01	6.5883400000000000
2016-01-01	6.1481800000000000