Year % change from 1990 1991 -1.32426679061685 1992 2.33767560937121 1993 8.24655395479037 1994 -2.34013723508902 1995 2.69796174122157 1996 5.18692234186697 1997 7.83553941080264 1998 -5.19804925709048 1999 -14.2411762343793 2000 -5.66324032411509 2001 -11.8054041807373 2002 -15.0022279920354 2003 -6.54610212978332 2004 0.121428733988771 2005 -13.63506985326 2006 -13.1024131541113 2007 1.51215838685888 2008 -3.98335938721127 2009 -1.42486095789478 2010 -4.41583203131318 2011 -2.40678758501518 2012 -0.564903872838529