Year	Percent
1996-01-01	60.34480000000000
1997-01-01	60.00000000000000
1998-01-01	56.25000000000000
1999-01-01	65.29410000000000
2000-01-01	77.81250000000000
2001-01-01	71.26440000000000
2002-01-01	71.47290000000000
2003-01-01	65.67160000000000
2004-01-01	63.82770000000000
2005-01-01	60.45150000000000
2006-01-01	58.61600000000001
2007-01-01	57.01570000000000
2008-01-01	48.55370000000000
2009-01-01	53.31770000000000
2010-01-01	52.58950000000000
2011-01-01	49.11960000000000
2012-01-01	47.76160000000000
2013-01-01	44.76570000000000
2014-01-01	38.83090000000000
2015-01-01	47.09010000000000
2016-01-01	48.27840000000000