Year % change from 1990 1991 -5.86856487734399 1992 -10.9145805195213 1993 -7.95301064798819 1994 9.30521091811414 1995 8.70724314476867 1996 2.80530514809811 1997 -3.47473065929579 1998 -6.88938970380376 1999 -7.46340735622075 2000 2.42799258724127 2001 -7.92042277852812 2002 -8.3919653233659 2003 -2.896394132613 2004 -3.02085623645444 2005 -2.74484090837704 2006 -2.42171058830919 2007 -1.61839997487201 2008 -1.19083142255866 2009 -2.81747652102901 2010 1.78290982190532 2011 2.80073892012438 2012 3.81856801834344