Year	Percent
1993-01-01	51.5742
1994-01-01	17.9500
1995-01-01	16.1000
1996-01-01	10.2900
1997-01-01	6.7200
1998-01-01	9.9400
1999-01-01	8.3500
2000-01-01	7.5400
2001-01-01	4.1800
2002-01-01	2.2700
2003-01-01	2.4100
2004-01-01	4.0300
2005-01-01	2.6200
2006-01-01	3.6500
2007-01-01	4.7600
2008-01-01	7.0700
2009-01-01	0.0700
2010-01-01	4.8800
2011-01-01	4.5900
2012-01-01	5.8000
2013-01-01	4.9100