Year % change from 1990 1991 -14.0525862848904 1992 12.9040371769156 1993 -12.2784154876262 1994 -8.69632868043694 1995 -2.73801878125566 1996 -9.33374759285636 1997 -7.42670943236957 1998 -4.32040282309129 1999 -4.72613776022461 2000 -9.17722784932243 2001 -4.94418224338662 2002 -9.05933552647654 2003 -10.9819915678806 2004 -3.54101554923782 2005 -3.97589695188293 2006 18.8185729417487 2007 65.4929998421339 2008 29.475889805028 2009 27.1372056000795 2010 28.6746209739069 2011 30.0685098472839 2012 31.4623987206608