Year	Percent
1995-01-01	3.2146300000000000
1996-01-01	4.2509700000000000
1997-01-01	4.7744500000000000
1998-01-01	7.9725000000000000
1999-01-01	7.6481100000000010
2000-01-01	7.8007200000000000
2001-01-01	5.4156300000000000
2002-01-01	6.0901100000000000
2003-01-01	8.6810500000000000
2004-01-01	8.5576300000000000
2005-01-01	6.2091400000000005
2006-01-01	6.2429000000000000
2007-01-01	7.4299600000000000
2008-01-01	15.8141000000000000
2009-01-01	12.0934000000000000
2010-01-01	9.3034699999999990
2011-01-01	11.2174000000000000
2012-01-01	7.7569000000000000
2013-01-01	8.8577900000000000