Year	Percent
1996-01-01	6.5560899999999990
1997-01-01	6.7791500000000000
1998-01-01	6.4578800000000000
1999-01-01	6.2769500000000000
2000-01-01	5.4570300000000005
2001-01-01	4.6548400000000000
2002-01-01	1.9421800000000000
2003-01-01	2.6977500000000000
2004-01-01	5.1011400000000000
2005-01-01	5.2829300000000000
2006-01-01	2.2498200000000000
2007-01-01	6.1783300000000000
2008-01-01	4.8735000000000000
2009-01-01	4.5767600000000000
2010-01-01	3.7060500000000000
2011-01-01	2.1441400000000000
2012-01-01	4.7534600000000000
2013-01-01	4.3339200000000000
2014-01-01	4.4414000000000000
2015-01-01	4.1981400000000000
2016-01-01	1.9635000000000000