Year Percent Change 1993-01-01 28.365127495656800 1994-01-01 15.287862913385600 1995-01-01 12.014064101511100 1996-01-01 12.171533784022900 1997-01-01 11.618575688426500 1998-01-01 7.603491493711770 1999-01-01 1.615068836728520 2000-01-01 2.312334983993970 2001-01-01 6.030437789973220 2002-01-01 5.323590747713640 2003-01-01 3.753251662145110 2004-01-01 0.300275736688992 2005-01-01 -1.744890912032870 2006-01-01 -1.436626506243440 2007-01-01 1.710053479906770 2008-01-01 4.240013994659890 2009-01-01 2.511836462638340 2010-01-01 -0.145588122570054