Year	Percent
1996-01-01	6.6974300000000010
1997-01-01	8.7240899999999990
1998-01-01	10.9563000000000000
1999-01-01	12.4645000000000000
2000-01-01	10.0742000000000000
2001-01-01	9.6282600000000010
2002-01-01	7.3129899999999990
2003-01-01	8.5158300000000010
2004-01-01	7.0334500000000000
2005-01-01	5.6524800000000010
2006-01-01	5.4306000000000000
2007-01-01	4.6365500000000000
2008-01-01	5.1950900000000000
2009-01-01	4.9301400000000000
2010-01-01	3.9098599999999997
2011-01-01	5.7861500000000000
2012-01-01	5.3336700000000000
2013-01-01	4.3454500000000000
2014-01-01	5.2573200000000000
2015-01-01	0.0925550000000000