Year % change from 1990 1991 -8.80849387650219 1992 -10.1858641550936 1993 -10.4173436966235 1994 -13.6183966853192 1995 -19.2617223661105 1996 12.2391855398718 1997 -13.0202641467734 1998 -57.1482614176808 1999 -74.137728622629 2000 -63.2054790432347 2001 -55.7167569559943 2002 6.66168242963225 2003 -55.7013460152996 2004 -42.9110585902934 2005 -46.5205923199819 2006 -32.9885282067519 2007 -47.3282073525358 2008 -45.4750634948682 2009 -64.145062107302 2010 -38.7174397867102 2011 -38.7174397867114 2012 -38.7174397867116