Year % change from 1990 1991 -6.59101143416881 1992 0.338545172626703 1993 -1.16790540697378 1994 0.309646390321583 1995 6.09891971941487 1996 4.9827767899836 1997 4.7991708718844 1998 10.4169084570139 1999 20.0378817772867 2000 11.5380419392128 2001 26.3282994517355 2002 19.7291638618986 2003 13.4052050304772 2004 22.8674091371218 2005 23.9073010626395 2006 39.1969620300176 2007 46.9682972233957 2008 41.413695933744 2009 41.5077040207607 2010 61.6498071093325 2011 63.2663051804259 2012 64.8828032515192