Year	Percent
1996-01-01	0.7664050000000000
1997-01-01	3.2922200000000000
1998-01-01	7.4996000000000000
1999-01-01	7.3623300000000000
2000-01-01	5.5161400000000000
2001-01-01	6.2324199999999990
2002-01-01	4.9586800000000000
2003-01-01	5.5979400000000000
2004-01-01	4.2452900000000000
2005-01-01	3.7219800000000003
2006-01-01	3.4505900000000000
2007-01-01	3.5557000000000000
2008-01-01	1.1494700000000000
2009-01-01	1.1249300000000000
2010-01-01	0.7444600000000000
2011-01-01	0.6746020000000000
2012-01-01	0.4061520000000000
2013-01-01	1.5128200000000000
2014-01-01	0.7305680000000000
2015-01-01	0.6373780000000000
2016-01-01	0.7884430000000000