Year	Percent
1992-01-01	0.8545379999999999
1993-01-01	0.7609380000000000
1994-01-01	0.8435920000000000
1995-01-01	0.8249850000000001
1996-01-01	0.8110340000000000
1997-01-01	0.6238140000000000
1998-01-01	0.5674730000000000
1999-01-01	0.5875010000000000
2000-01-01	0.5390119999999999
2001-01-01	0.6387350000000000
2002-01-01	0.6922940000000000
2003-01-01	0.7027000000000000
2004-01-01	0.6910140000000000
2005-01-01	0.6803720000000000
2006-01-01	0.6166820000000000
2007-01-01	0.6565750000000000
2008-01-01	0.6184240000000000
2009-01-01	0.5944940000000000
2010-01-01	0.6032370000000000
2011-01-01	0.6170970000000000
2012-01-01	0.5826520000000001
2013-01-01	0.5818550000000000
2014-01-01	0.5208600000000000
2015-01-01	0.5644359999999999