Year % change from 1990 1991 -4.5817004917971 1992 -15.3416262542089 1993 -24.9187529902494 1994 -22.9378639304647 1995 -21.6070250670285 1996 -24.3808922511061 1997 -32.4724466216941 1998 11.5353209489447 1999 22.412640851053 2000 15.7173312923396 2001 24.440227585751 2002 21.23957458328 2003 8.94146627517824 2004 20.0816827889364 2005 20.5719903897327 2006 41.2505675566881 2007 26.0772024721769 2008 71.7116539864798 2009 36.248550091163 2010 89.0850936146391 2011 93.4322662297173 2012 98.4591259247875