Year	Percent
1996-01-01	50.00000000000000
1997-01-01	48.57140000000000
1998-01-01	40.00000000000000
1999-01-01	52.63160000000000
2000-01-01	57.56100000000001
2001-01-01	53.40500000000000
2002-01-01	56.61970000000000
2003-01-01	49.80240000000000
2004-01-01	45.56110000000000
2005-01-01	55.67280000000000
2006-01-01	51.14090000000000
2007-01-01	43.52480000000000
2008-01-01	47.39970000000000
2009-01-01	48.53620000000000
2010-01-01	39.79160000000000
2011-01-01	38.83750000000000
2012-01-01	40.25540000000000
2013-01-01	43.97790000000000
2014-01-01	42.17830000000000