Year	Percent
1996-01-01	27.140200000000000
1997-01-01	32.564600000000000
1998-01-01	35.478700000000000
1999-01-01	37.997200000000000
2000-01-01	42.702700000000000
2001-01-01	45.868600000000000
2002-01-01	61.185600000000000
2003-01-01	59.067400000000000
2004-01-01	54.188800000000000
2005-01-01	56.428600000000000
2006-01-01	64.607600000000000
2007-01-01	57.325900000000000
2008-01-01	57.086000000000006
2009-01-01	45.997100000000000
2010-01-01	41.763400000000000
2011-01-01	39.840200000000000
2012-01-01	33.948200000000000
2013-01-01	30.348200000000000
2014-01-01	22.834200000000000
2015-01-01	14.641200000000000
2016-01-01	17.467700000000000