Year	Percent
1996-01-01	41.0959
1997-01-01	45.8716
1998-01-01	87.8788
1999-01-01	91.7722
2000-01-01	78.0488
2001-01-01	76.1538
2002-01-01	60.8187
2003-01-01	53.6585
2004-01-01	50.0000
2005-01-01	49.8129
2006-01-01	54.3257
2007-01-01	54.8448
2008-01-01	51.4362
2009-01-01	52.4651
2010-01-01	50.9071
2011-01-01	47.7799
2012-01-01	46.6745
2013-01-01	42.5007
2014-01-01	44.0449