Year % change from 1990 1991 5.10537456736957 1992 4.80888057041147 1993 10.5313031349286 1994 14.4560112092399 1995 52.9085676945144 1996 56.4958556379803 1997 57.8155778183911 1998 116.919573129877 1999 122.776379259603 2000 130.175461401877 2001 122.294854582246 2002 139.774428378993 2003 144.208923431042 2004 106.566622763792 2005 119.913038198892 2006 115.361489487882 2007 193.007136586013 2008 194.077832735858 2009 196.990306707758 2010 139.364030700831 2011 208.913085179864 2012 137.429841083828