Year	Percent
1994-12-31	5.69
1995-12-31	6.47
1996-12-31	6.13
1997-12-31	7.315
1998-12-31	6.315
1999-12-31	4.625
2000-12-31	5.4532
2001-12-31	4.3438
2002-12-31	4.0313
2003-12-31	3.8125
2004-12-31	4.77
2005-12-31	4.65
2006-12-31	5.21
2007-12-31	5.7
2008-12-31	1.95
2009-12-31	0.5
2010-12-31	0.575
2011-12-31	0.675
2012-12-31	0.475
2013-12-31	0.475
2014-12-31	0.45
2015-12-31	0.425
2016-12-31	0.24