Year % change from 1990 1991 2.58900762014254 1992 1.97208218673568 1993 -2.70660636159852 1994 -2.76087030473746 1995 -3.22048110649779 1996 -2.61014682308839 1997 -4.931904855755 1998 -3.58926171190078 1999 -3.80038261226755 2000 -5.90594294541679 2001 -4.11113662691803 2002 -6.02261498927024 2003 -3.26462939876894 2004 -2.07689548032733 2005 -0.906044623259361 2006 -1.12032792795906 2007 -4.0453290390741 2008 0.427514898055947 2009 -2.03537784896047 2010 1.34834311212324 2011 -5.89946747698303 2012 -4.0531108963622