Year Percent 1996-01-01 0.8313690000000000 1997-01-01 0.8281560000000000 1998-01-01 0.8520760000000001 1999-01-01 0.6745850000000000 2000-01-01 0.7792810000000000 2001-01-01 0.6711500000000000 2002-01-01 0.6078290000000000 2003-01-01 1.1744500000000000 2004-01-01 0.6169150000000000