Year	Percent
1996-01-01	2.4627400000000000
1997-01-01	2.0154799999999997
1998-01-01	1.9967500000000000
1999-01-01	1.7208800000000000
2000-01-01	1.3158500000000000
2001-01-01	1.2717600000000000
2002-01-01	1.5226200000000000
2003-01-01	1.6936400000000003
2004-01-01	1.0190200000000000
2005-01-01	0.8801290000000000
2006-01-01	1.0291200000000000
2007-01-01	1.3755800000000000
2008-01-01	1.0446400000000000
2009-01-01	1.3476700000000001
2010-01-01	1.2541400000000000
2011-01-01	1.4845700000000002
2012-01-01	1.6580800000000000
2013-01-01	1.6807200000000000
2014-01-01	1.4479899999999999
2015-01-01	1.0787799999999999
2016-01-01	1.0566300000000000