Year	Percent
1996-01-01	24.2606000000000000
1997-01-01	23.6090000000000000
1998-01-01	15.1601000000000000
1999-01-01	9.8513399999999990
2000-01-01	6.9824600000000006
2001-01-01	6.1162100000000000
2002-01-01	6.4410900000000000
2003-01-01	8.2802600000000000
2004-01-01	11.5207000000000000
2005-01-01	10.1190000000000000
2006-01-01	15.6293000000000000
2007-01-01	17.3285000000000000
2008-01-01	17.5081000000000000
2009-01-01	17.3349000000000000
2010-01-01	33.0047000000000000
2011-01-01	25.4826000000000000
2012-01-01	20.6362000000000000
2013-01-01	18.5399000000000000
2014-01-01	10.9825000000000000