Year Percent 1993-01-01 5.45000 1994-01-01 5.16000 1995-01-01 6.36000 1996-01-01 4.17000 1997-01-01 5.58000 1998-01-01 6.53000 1999-01-01 6.54000 2000-01-01 6.45000 2001-01-01 3.82000 2002-01-01 3.37000 2003-01-01 2.91000 2004-01-01 6.50000 2005-01-01 4.30000 2006-01-01 4.09000 2007-01-01 3.73000 2008-01-01 2.01875