Year Percent Change 1979-01-01 15.941180841360400 1980-01-01 19.303974527263600 1981-01-01 14.475933341236400 1982-01-01 11.162436405096000 1983-01-01 -0.350518617638470 1984-01-01 1.428381400545420 1985-01-01 21.544168847184400 1986-01-01 16.231262149508500 1987-01-01 13.769754528519000 1988-01-01 3.409234032770590 1989-01-01 -0.795821800013052 1990-01-01 2.269998953929030 1991-01-01 -0.191123551202072 1992-01-01 -1.763784035436980 1993-01-01 -2.209830347297410 1994-01-01 -1.603460422029960 1995-01-01 -0.832199784479339 1996-01-01 2.727705419486330 1997-01-01 1.270425308736930 1998-01-01 -0.540566908274562 1999-01-01 -6.680570020824940 2000-01-01 -4.906976977396100 2001-01-01 2.180302847745420 2002-01-01 1.928782672246540 2003-01-01 4.162841655394600 2004-01-01 1.502957108805440 2005-01-01 2.420727096514060 2006-01-01 4.278879151491210 2007-01-01 -0.422499493019647 2008-01-01 5.071599932615030 2009-01-01 4.640010479835350 2010-01-01 1.203103796753250