Year Percent 1996-01-01 0.13551100000000000 1997-01-01 0.31081200000000000 1998-01-01 0.27705200000000000 1999-01-01 0.23396799999999998 2000-01-01 0.18810100000000000 2001-01-01 0.27253200000000000 2002-01-01 0.29514900000000000 2003-01-01 0.92723200000000000 2004-01-01 -1.45244000000000000