Year	Percent
1995-01-01	0.6303800000000000
1996-01-01	0.6959069999999999
1997-01-01	2.2061800000000000
1998-01-01	1.5330300000000000
1999-01-01	2.2888100000000000
2000-01-01	4.6720100000000000
2001-01-01	3.7684300000000004
2002-01-01	4.5545400000000000
2003-01-01	4.8030200000000000
2004-01-01	4.3608100000000000
2005-01-01	3.1120099999999997
2006-01-01	5.5092900000000000
2007-01-01	4.9734900000000000
2008-01-01	4.1074300000000000
2009-01-01	4.2284800000000000
2010-01-01	4.3813400000000000
2011-01-01	3.1983500000000000
2012-01-01	2.5577200000000000
2013-01-01	2.2584500000000000