Year % change from 1990 1991 4.88995506172922 1992 3.93283607653452 1993 4.78054737657057 1994 5.58736224127114 1995 9.98836570640356 1996 10.6342335080274 1997 14.3762404134649 1998 7.69304288571353 1999 12.1935477073389 2000 112.259785508081 2001 92.8344855305276 2002 95.4421829223081 2003 115.732179408824 2004 74.4190073146685 2005 81.8405146128453 2006 59.3008961462299 2007 74.1083265452172 2008 80.525534634227 2009 81.6134198103018 2010 90.2594051473852 2011 95.6810772491006 2012 100.5548972883