Year	Percent
1996-01-01	24.792400000000000
1997-01-01	26.232900000000000
1998-01-01	29.166700000000000
1999-01-01	24.549900000000000
2000-01-01	25.538700000000000
2001-01-01	24.086200000000000
2002-01-01	21.974500000000000
2003-01-01	26.502100000000000
2004-01-01	31.621800000000000
2005-01-01	46.808500000000000
2006-01-01	38.929800000000000
2007-01-01	40.805900000000000
2008-01-01	42.030300000000000
2009-01-01	36.137300000000000
2010-01-01	28.614500000000000
2011-01-01	27.109100000000000
2012-01-01	27.166999999999998
2013-01-01	25.701100000000000
2014-01-01	25.959900000000000