Year Percent 1993-01-01 0.8637630000000000 1994-01-01 3.0506599999999997 1995-01-01 4.8355500000000000 1996-01-01 8.0240500000000000 1997-01-01 13.7855000000000000 1998-01-01 13.0933000000000000 1999-01-01 13.7975000000000000 2000-01-01 11.3911000000000000 2001-01-01 4.2432800000000000 2002-01-01 3.0936400000000000 2003-01-01 1.8946400000000000 2004-01-01 1.3290899999999999 2005-01-01 1.4782100000000000 2006-01-01 1.6990100000000000 2007-01-01 1.8750700000000000 2008-01-01 1.2113700000000000 2009-01-01 0.4533330000000000 2010-01-01 0.1687400000000000 2011-01-01 0.0095110000000000 2012-01-01 8.9459200000000000