Year	Percent
1996-01-01	84.7278
1997-01-01	87.4317
1998-01-01	80.8219
1999-01-01	43.3333
2000-01-01	94.0154
2001-01-01	90.0560
2002-01-01	76.4499
2003-01-01	75.1975
2004-01-01	74.1713
2005-01-01	67.9380
2006-01-01	66.7900
2007-01-01	67.9899
2008-01-01	70.7909
2009-01-01	72.8761
2010-01-01	71.1712
2011-01-01	64.7213
2012-01-01	63.6616
2013-01-01	69.0789
2014-01-01	68.4412