Year	Percent
1996-01-01	8.5527400000000000
1997-01-01	12.7682000000000000
1998-01-01	7.1935300000000000
1999-01-01	6.1307400000000000
2000-01-01	6.7735600000000010
2001-01-01	6.8723300000000010
2002-01-01	3.5962600000000000
2003-01-01	7.1577399999999995
2004-01-01	5.6318800000000010
2005-01-01	3.8833900000000003
2006-01-01	5.6170200000000000
2007-01-01	5.3304800000000006
2008-01-01	5.1306900000000000
2009-01-01	6.7046800000000010
2010-01-01	4.9329500000000000
2011-01-01	4.9754400000000000
2012-01-01	5.3483000000000000
2013-01-01	5.5760300000000000
2014-01-01	5.7443000000000000
2015-01-01	3.2400500000000000
2016-01-01	7.9415800000000000