Year % change from 1990 1991 -4.09889675135089 1992 -5.11240315900702 1993 2.13889014087327 1994 -1.06809292728975 1995 -2.00567900121692 1996 -0.849847007506899 1997 -2.80314298162588 1998 48.7828207709219 1999 -0.533044876128663 2000 6.35557358413086 2001 3.30573959726166 2002 4.24723186250207 2003 11.6259270944447 2004 6.61197998828142 2005 11.8973573113385 2006 7.84092787067503 2007 9.75295843912603 2008 10.3579172989188 2009 10.4240220749889 2010 10.5792681400019 2011 11.6850608214019 2012 12.7908535028019