Year Percent Change 1993-01-01 31.090086913008700 1994-01-01 6.073929787682440 1995-01-01 0.374777583586798 1996-01-01 28.435822901708100 1997-01-01 7.017726876967820 1998-01-01 13.575001769090400 1999-01-01 1.707650232224040 2000-01-01 3.460660900888370 2001-01-01 9.907377305870590 2002-01-01 11.208915966904500 2003-01-01 6.439925684764170 2004-01-01 6.370147894139000 2005-01-01 6.396075494024210 2006-01-01 7.699943965482860 2007-01-01 10.022423445693200 2008-01-01 10.278002234252600 2009-01-01 2.472969175173290 2010-01-01 5.518822490701210