Year Percent 1993-01-01 0.0536500000000000 1994-01-01 0.0536500000000000 1995-01-01 10.2765000000000000 1996-01-01 11.6719000000000000 1997-01-01 9.8556300000000000 1998-01-01 10.2073000000000000 1999-01-01 8.4152100000000000 2000-01-01 5.0809400000000000 2001-01-01 5.7790700000000000 2002-01-01 5.9272900000000000 2003-01-01 7.4258700000000000 2004-01-01 5.9969400000000000 2005-01-01 5.9117100000000000 2006-01-01 4.5409600000000000 2007-01-01 0.5016729999999999 2008-01-01 0.4571890000000000 2009-01-01 3.0461400000000003 2010-01-01 2.7048799999999997 2011-01-01 2.3536700000000000