Year	Percent
1992-01-01	0.66701199999999990
1993-01-01	0.65484300000000010
1994-01-01	0.61926200000000000
1995-01-01	0.63235900000000000
1996-01-01	0.55917900000000000
1997-01-01	0.53521400000000010
1998-01-01	0.53769000000000000
1999-01-01	0.50535900000000000
2000-01-01	0.43248400000000004
2001-01-01	0.48775500000000000
2002-01-01	0.61599300000000000
2003-01-01	0.57369300000000000
2004-01-01	0.54936900000000000
2005-01-01	0.51702399999999990
2006-01-01	0.51217100000000000
2007-01-01	0.53723199999999990
2008-01-01	0.56624900000000000
2009-01-01	0.71779200000000000
2010-01-01	0.61860100000000010
2011-01-01	0.54777900000000000
2012-01-01	0.56969399999999990
2013-01-01	0.63455299999999990
2014-01-01	0.68007700000000000
2015-01-01	0.71555100000000000
2016-01-01	0.68760200000000000