Year % change from 1990 1991 -0.838664542611722 1992 3.66315186149815 1993 2.80172958757936 1994 -7.57748164631112 1995 -8.02505036201651 1996 -7.66598393472745 1997 -7.03803912644027 1998 -3.74659687629065 1999 -2.7604285196517 2000 6.3612073397898 2001 -10.7323775086184 2002 2.10298294855911 2003 8.2189125175951 2004 6.55591237430568 2005 7.61288256167767 2006 5.95999696563583 2007 6.65790072571879 2008 7.23274416095616 2009 -0.210719734324538 2010 -0.274778533559217 2011 0.722473681105185 2012 1.71972589576961