Year	Percent
1999-01-01	8.7000000000000000
2000-01-01	8.7000000000000000
2001-01-01	12.4000000000000000
2002-01-01	33.9000000000000000
2003-01-01	14.3000000000000000
2004-01-01	4.7000000000000000
2005-01-01	5.6000000000000000
2006-01-01	3.7000000000000000
2007-01-01	1.1000000000000000
2008-01-01	1.0000000000000000
2009-01-01	3.8000000000000000
2010-01-01	2.4228099999999997
2011-01-01	1.4910500000000000
2012-01-01	1.3254800000000000
2013-01-01	1.2769400000000000
2014-01-01	1.2778200000000002
2015-01-01	1.5981700000000000
2016-01-01	2.3158600000000000