Year	Percent
1994-01-01	5.0790900000000000
1995-01-01	5.8038300000000005
1996-01-01	7.3424900000000000
1997-01-01	10.4209000000000000
1998-01-01	10.7597000000000000
1999-01-01	9.6021600000000010
2000-01-01	9.6203600000000000
2001-01-01	15.8338000000000000
2002-01-01	22.4713000000000000
2003-01-01	26.1575000000000000
2004-01-01	27.3946000000000000
2005-01-01	22.7182000000000000
2006-01-01	19.5602000000000000
2007-01-01	20.9172000000000000
2008-01-01	20.7526000000000000
2009-01-01	26.3927000000000000
2010-01-01	30.8936000000000000
2011-01-01	29.2543000000000000