Year	Percent
1989-01-01	0.41248199999999996
1990-01-01	0.25224500000000000
1991-01-01	0.21864600000000000
1992-01-01	0.43499099999999996
1993-01-01	0.66600500000000010
1994-01-01	0.73803900000000000
1995-01-01	0.85268500000000000
1996-01-01	0.73484800000000000
1997-01-01	0.57986000000000000
1998-01-01	0.60730000000000000
1999-01-01	0.28575700000000004
2000-01-01	0.14386500000000002
2001-01-01	0.19296100000000000
2002-01-01	0.24609000000000000
2003-01-01	0.28842100000000000
2004-01-01	0.47734300000000000
2005-01-01	0.44872100000000000
2006-01-01	0.44866000000000006
2007-01-01	0.38964899999999997
2008-01-01	0.30510300000000000
2009-01-01	0.44661100000000000
2010-01-01	0.65330400000000000
2011-01-01	0.54677000000000000
2012-01-01	0.53491400000000000
2013-01-01	0.61505400000000000
2014-01-01	0.49409899999999995
2015-01-01	0.45498500000000003
2016-01-01	0.43334799999999996