Year % change from 1990 1991 -0.885910100963927 1992 30.1322607955671 1993 29.8199451107904 1994 29.5021883862093 1995 25.6564614524094 1996 25.5802868951468 1997 14.9561125729371 1998 16.5329259082728 1999 35.7963832320212 2000 12.346589882713 2001 3.1769143210344 2002 9.96232624039384 2003 -0.699173614874493 2004 10.5967514815951 2005 12.4238526479364 2006 36.6995958395633 2007 21.7541477046429 2008 30.945152142355 2009 47.797140624762 2010 88.8019047992148 2011 90.6899238472069 2012 92.577942895199