Year	Percent
1994-01-01	1.6474700000000000
1995-01-01	1.2831500000000000
1996-01-01	0.7204860000000000
1997-01-01	1.4076400000000000
1998-01-01	1.4092600000000000
1999-01-01	1.5731899999999999
2000-01-01	1.0731400000000000
2001-01-01	0.9217000000000000
2002-01-01	0.9338850000000001
2003-01-01	0.9539950000000000
2004-01-01	1.4695400000000000
2005-01-01	1.2864400000000000
2006-01-01	1.6425800000000000
2007-01-01	2.4345900000000000
2008-01-01	2.8631400000000000
2009-01-01	5.0447500000000000
2010-01-01	6.1829900000000000
2011-01-01	5.4130100000000000
2012-01-01	7.5354300000000000
2013-01-01	8.7215800000000000
2014-01-01	7.9654600000000000
2015-01-01	7.5690200000000000
2016-01-01	6.9016600000000010