Year	Percent
1993-01-01	0.851490020751953
1994-01-01	0.735390007495880
1995-01-01	0.723789989948273
1996-01-01	0.735230028629303
1997-01-01	0.721310019493103
1999-01-01	0.696950018405914
2000-01-01	0.704630017280579
2001-01-01	0.717000007629395
2002-01-01	0.653919994831085
2003-01-01	0.651730000972748
2004-01-01	0.571210026741028
2005-01-01	0.597859978675842
2006-01-01	0.607749998569489
2007-01-01	0.712170004844666
2008-01-01	0.716159999370575
2009-01-01	0.716440021991730
2010-01-01	0.766449987888336
2011-01-01	0.787919998168945
2012-01-01	0.793009996414185
2013-01-01	0.798839986324310
2014-01-01	0.816489994525909
2015-01-01	0.850350022315979