Year	Percent
1990-01-01	0.38236700000000000
1991-01-01	0.42797700000000005
1992-01-01	0.47925400000000000
1993-01-01	0.44133999999999995
1994-01-01	0.43388900000000000
1995-01-01	0.40952700000000000
1996-01-01	0.43865800000000000
1997-01-01	0.45975699999999997
1998-01-01	0.44171900000000000
1999-01-01	0.44869000000000000
2000-01-01	0.45293800000000000
2001-01-01	0.42954100000000000
2002-01-01	0.46566300000000000
2003-01-01	0.50293000000000000
2004-01-01	0.50612100000000000
2005-01-01	0.47329700000000000
2006-01-01	0.42235700000000000
2007-01-01	0.46457800000000000
2008-01-01	0.43749899999999997
2009-01-01	0.40152100000000000
2010-01-01	0.38402400000000000
2011-01-01	0.40671799999999997
2012-01-01	0.45218000000000000
2013-01-01	0.47824200000000000
2014-01-01	0.48251499999999997
2015-01-01	0.47448800000000000
2016-01-01	0.49133900000000000