Year	Percent
1996-01-01	30.476200000000000
1997-01-01	53.692500000000000
1998-01-01	39.664600000000000
1999-01-01	38.367600000000000
2000-01-01	43.443000000000005
2001-01-01	47.252700000000000
2002-01-01	47.252700000000000
2003-01-01	47.252700000000000
2004-01-01	56.185600000000000
2005-01-01	57.014600000000000
2006-01-01	46.702900000000000
2007-01-01	52.727500000000000
2008-01-01	45.668200000000000
2009-01-01	39.185900000000000
2010-01-01	43.905900000000000
2011-01-01	47.603700000000000
2012-01-01	50.055100000000000
2013-01-01	52.286300000000000
2014-01-01	47.394700000000000