Year	Percent
1996-01-01	2.0215200000000000
1997-01-01	1.6542200000000000
1998-01-01	1.1183100000000001
1999-01-01	1.5558100000000001
2000-01-01	2.1457100000000000
2001-01-01	2.3048700000000000
2002-01-01	0.5600940000000000
2003-01-01	4.4635700000000000
2004-01-01	8.7873500000000000
2005-01-01	9.2274000000000000
2006-01-01	9.6083500000000000
2007-01-01	20.4887000000000000
2008-01-01	9.6752399999999990
2009-01-01	3.5645800000000003
2010-01-01	8.4936100000000000
2011-01-01	4.0791900000000005
2012-01-01	4.0980400000000000
2013-01-01	3.7548000000000000
2014-01-01	3.8437200000000000
2015-01-01	3.6214699999999995
2016-01-01	2.9619100000000000