Year	Percent
1996-01-01	38.4615
1997-01-01	27.1186
1998-01-01	26.6667
1999-01-01	28.7500
2000-01-01	29.7872
2001-01-01	29.2453
2002-01-01	28.5714
2003-01-01	28.5714
2004-01-01	32.7869
2005-01-01	30.5085
2006-01-01	34.9425
2007-01-01	35.4000
2008-01-01	32.7519
2009-01-01	30.0134
2010-01-01	29.1988
2011-01-01	31.3546
2012-01-01	28.9991
2013-01-01	27.8571
2014-01-01	30.3028