Year	Percent
1990-01-01	0.61153300000000000
1991-01-01	0.62876599999999990
1992-01-01	0.71241199999999990
1993-01-01	0.80388900000000010
1994-01-01	0.82681399999999990
1995-01-01	0.82112999999999990
1996-01-01	0.77365600000000000
1997-01-01	0.77968900000000010
1998-01-01	0.58905699999999990
1999-01-01	0.52521100000000000
2000-01-01	0.48428999999999994
2001-01-01	0.49133300000000000
2002-01-01	0.52601100000000000
2003-01-01	0.49685300000000000
2004-01-01	0.45896300000000000
2005-01-01	0.44343900000000000
2006-01-01	0.36307800000000000
2007-01-01	0.51732800000000000
2008-01-01	0.48123000000000000
2009-01-01	0.47579000000000000
2010-01-01	0.47631899999999994
2011-01-01	0.48738600000000000
2012-01-01	0.49431800000000004
2013-01-01	0.49271200000000000
2014-01-01	0.47492900000000000
2015-01-01	0.37815500000000000
2016-01-01	0.54699700000000010