Year	Percent
1996-01-01	26.7266
1997-01-01	24.5277
1998-01-01	32.4583
1999-01-01	26.8376
2000-01-01	30.4126
2001-01-01	36.3973
2002-01-01	35.8158
2003-01-01	35.7920
2004-01-01	34.9318
2005-01-01	32.8884
2006-01-01	36.9526
2007-01-01	34.2801
2008-01-01	32.4301
2009-01-01	30.7728
2010-01-01	29.5473
2011-01-01	26.2125
2012-01-01	23.9137
2013-01-01	25.2707
2014-01-01	22.0835