Year	Percent
1996-01-01	18.333800000000000
1997-01-01	4.445000000000000
1998-01-01	7.948410000000001
1999-01-01	16.635800000000000
2000-01-01	12.769500000000000
2001-01-01	12.820500000000000
2002-01-01	12.820500000000000
2003-01-01	12.820500000000000
2004-01-01	51.955300000000000
2005-01-01	50.372300000000000
2006-01-01	44.924500000000000
2007-01-01	40.915000000000000
2008-01-01	27.883800000000000
2009-01-01	54.613900000000000
2010-01-01	51.117000000000000
2011-01-01	46.459700000000000
2012-01-01	29.776700000000000
2013-01-01	35.812400000000000
2014-01-01	23.802100000000000
2015-01-01	35.277400000000000
2016-01-01	36.011600000000000