Year % change from 1990 1991 -7.7950225262137 1992 1.61437867961467 1993 14.6811333543018 1994 -38.4388691264611 1995 -23.2801888923831 1996 -17.3097454116952 1997 -15.8169684190014 1998 485.696075521515 1999 289.1355869884 2000 105.595671068545 2001 357.011477958863 2002 200.997842622167 2003 220.456659741205 2004 95.7294329241564 2005 103.379264365169 2006 -70.2688305417374 2007 206.460726420571 2008 202.693621338106 2009 233.990661699211 2010 92.6188440530243 2011 92.6188440530354 2012 92.6188440530243