Year Percent Change 1993-01-01 16.59785098462110 1994-01-01 17.24972766783190 1995-01-01 26.55567419102540 1996-01-01 29.88581279447260 1997-01-01 18.30862260316750 1998-01-01 1.99765849343947 1999-01-01 8.97313261763786 2000-01-01 6.86840421877240 2001-01-01 9.63069571413694 2002-01-01 11.73115622101260 2003-01-01 6.08508584437836 2004-01-01 5.65111713709870 2005-01-01 1.27275434110816 2006-01-01 5.70736795952471 2007-01-01 4.43648950399286 2008-01-01 6.95242262452737 2009-01-01 3.43865999137615 2010-01-01 2.34414884564663