Year	Percent
1993-01-01	14.8869000000000000
1994-01-01	13.9346000000000000
1995-01-01	8.8102400000000000
1996-01-01	4.2695800000000000
1997-01-01	4.4120300000000010
1998-01-01	3.4054699999999998
1999-01-01	1.8250300000000000
2000-01-01	1.4643400000000000
2001-01-01	1.6047400000000000
2002-01-01	2.1385800000000000
2003-01-01	2.6396300000000000
2004-01-01	3.4162199999999996
2005-01-01	3.9100400000000000
2006-01-01	5.9088400000000005
2007-01-01	7.6997899999999990
2008-01-01	6.4463099999999995
2009-01-01	5.7352500000000000
2010-01-01	5.0466000000000000
2011-01-01	5.0374500000000000
2012-01-01	5.2043400000000000
2013-01-01	4.8795500000000000