Year	Percent
1996-01-01	42.15080000000000
1997-01-01	45.24140000000000
1998-01-01	77.00520000000000
1999-01-01	75.34150000000000
2000-01-01	59.54570000000000
2001-01-01	53.53340000000000
2002-01-01	41.83410000000000
2003-01-01	47.06670000000000
2004-01-01	45.48260000000000
2005-01-01	49.00020000000000
2006-01-01	53.75870000000000
2007-01-01	54.88950000000000
2008-01-01	59.65230000000000
2009-01-01	90.61220000000000
2010-01-01	92.85840000000000
2011-01-01	79.61399999999999
2012-01-01	78.49440000000000
2013-01-01	77.79050000000000
2014-01-01	75.38760000000000