Year	Percent
1996-01-01	0.5315110000000000
1997-01-01	0.6159080000000000
1998-01-01	0.6616620000000000
1999-01-01	0.7263689999999999
2000-01-01	0.7873410000000000
2001-01-01	0.5652800000000000
2002-01-01	2.9878500000000000
2003-01-01	2.9596299999999998
2004-01-01	2.5211500000000000
2005-01-01	2.5214200000000000
2006-01-01	2.5003900000000003
2007-01-01	2.4407200000000002
2008-01-01	2.1087900000000000
2009-01-01	2.7477099999999997
2010-01-01	2.3828400000000003
2011-01-01	2.1017000000000000
2012-01-01	1.5461799999999999
2013-01-01	1.9179900000000000
2014-01-01	2.2653700000000000
2015-01-01	2.4474299999999998
2016-01-01	2.5781900000000000