Year	Percent
1996-01-01	13.2227000000000000
1997-01-01	13.1059000000000000
1998-01-01	19.0903000000000000
1999-01-01	19.0746000000000000
2000-01-01	15.7261000000000000
2001-01-01	16.0392000000000000
2002-01-01	20.2603000000000000
2003-01-01	12.9905000000000000
2004-01-01	8.5200200000000000
2005-01-01	9.5131600000000010
2006-01-01	9.3665000000000000
2007-01-01	13.9093000000000000
2008-01-01	25.9371000000000000
2009-01-01	11.4068000000000000
2010-01-01	17.7600000000000000
2011-01-01	13.7504000000000000
2012-01-01	7.5895399999999995
2013-01-01	10.0797000000000000
2014-01-01	6.9351400000000000
2015-01-01	5.9464800000000000
2016-01-01	7.2147500000000000