Year % change from 1990 1991 -11.7577346126843 1992 -3.07605897495906 1993 -7.17322724081442 1994 -7.19812777907794 1995 -0.507371869880646 1996 -2.34963725719635 1997 -0.73203838052891 1998 -3.49730868242454 1999 -1.07559091972854 2000 13.2122630470396 2001 42.5265621343318 2002 44.7975661128013 2003 -11.8537795459864 2004 9.56798502223262 2005 11.3597004446525 2006 8.08893049379826 2007 112.580388485841 2008 43.591855838989 2009 36.7750994617365 2010 47.9709805757079 2011 49.450690381465 2012 50.9304001872221