Year % change from 1990 1991 8.09155800263908 1992 8.69041065727942 1993 13.584216405105 1994 19.9145860027229 1995 50.699531025281 1996 55.2255698368976 1997 57.6850044445342 1998 64.5149617984121 1999 71.5155617280972 2000 78.1534046644716 2001 83.7011793224806 2002 90.9966238447076 2003 99.66910223419 2004 74.5631583923627 2005 82.6226391802539 2006 91.6177499821413 2007 138.633713192461 2008 80.9824328643928 2009 84.5816566985941 2010 46.1888790658918 2011 101.380784952141 2012 44.6227630114825