Year	Percent
1996-01-01	2.5998500000000000
1997-01-01	1.4218000000000000
1998-01-01	1.4218000000000000
1999-01-01	7.5556700000000000
2000-01-01	1.4218000000000000
2001-01-01	1.4218000000000000
2002-01-01	1.4218000000000000
2003-01-01	1.6957200000000001
2004-01-01	22.7273000000000000
2005-01-01	10.4844000000000000
2006-01-01	12.0177000000000000
2007-01-01	12.8891000000000000
2008-01-01	12.4684000000000000
2009-01-01	14.4213000000000000
2010-01-01	14.0299000000000000
2011-01-01	16.3517000000000000
2012-01-01	14.4252000000000000
2013-01-01	11.7235000000000000
2014-01-01	11.4770000000000000
2015-01-01	11.4958000000000000
2016-01-01	11.2461000000000000