Year % change from 1990 1991 5.35322538800893 1992 2.58137424782257 1993 -2.40064111426995 1994 -7.08600545250893 1995 -11.9217382559908 1996 -7.82930089067276 1997 -11.8511332828164 1998 -28.9533725909069 1999 -19.1716788707144 2000 -21.5625550401575 2001 -25.1580954598804 2002 -19.400587605911 2003 -14.2268983596982 2004 -13.3677071874457 2005 -7.49399206093528 2006 -0.297156924769104 2007 30.3196605829304 2008 -1.12891403942039 2009 7.79824685367736 2010 27.3585753030688 2011 27.3585753030677 2012 27.3585753030677