Year % change from 1990 1991 -14.6077308008519 1992 -7.56345769163543 1993 -8.91094236533246 1994 -5.77803240695786 1995 -0.260887015853906 1996 4.72445022754786 1997 8.57949285635677 1998 -0.151482783399037 1999 3.20606190078525 2000 11.3320774504282 2001 7.51037398121355 2002 17.3379813948069 2003 0.21168747936533 2004 0.833155308694722 2005 20.7919830650017 2006 9.78488150032693 2007 74.6955778679769 2008 89.8723401500586 2009 73.6520298045613 2010 69.5412790584762 2011 71.236691849061 2012 72.9321046396458