Year	Percent
1990-01-01	0.5542350000000000
1991-01-01	0.5066910000000000
1992-01-01	0.6370210000000000
1993-01-01	0.6999989999999999
1994-01-01	0.7766190000000000
1995-01-01	0.8333729999999999
1996-01-01	0.6987930000000000
1997-01-01	0.6340050000000000
1998-01-01	0.6136750000000000
1999-01-01	0.6333780000000000
2000-01-01	0.6878040000000000
2001-01-01	0.7932490000000000
2002-01-01	0.9111710000000000
2003-01-01	0.8791570000000000
2004-01-01	0.8534010000000001
2005-01-01	0.8120180000000000
2006-01-01	0.7542230000000000
2007-01-01	0.7600600000000001
2008-01-01	0.7153720000000000
2009-01-01	0.7391510000000000
2010-01-01	0.7105779999999999
2011-01-01	0.9336870000000000
2012-01-01	0.8479790000000000
2013-01-01	0.8386230000000000
2014-01-01	0.8580430000000000
2015-01-01	0.8288719999999999
2016-01-01	0.8148380000000001