Year	Percent
1992-01-01	0.30360000000000000
1993-01-01	0.31419000000000000
1994-01-01	0.28095100000000000
1995-01-01	0.28265300000000004
1996-01-01	0.36649200000000000
1997-01-01	0.49118400000000000
1998-01-01	0.43250200000000005
1999-01-01	0.45132900000000000
2000-01-01	0.40601500000000000
2001-01-01	0.42394400000000000
2002-01-01	0.43936400000000003
2003-01-01	0.43126499999999995
2004-01-01	0.42780799999999997
2005-01-01	0.25186200000000000
2006-01-01	0.26168500000000000
2007-01-01	0.25771600000000000
2008-01-01	0.29762900000000000
2009-01-01	0.31722800000000000
2010-01-01	0.28741600000000000
2011-01-01	0.33426600000000000
2012-01-01	0.36137800000000003
2013-01-01	0.39895900000000000
2014-01-01	0.42012700000000003
2015-01-01	0.41761099999999995
2016-01-01	0.40782600000000000
2017-01-01	0.41602900000000000