Year % change from 1990 1991 -1.39343608317237 1992 2.67350454245028 1993 6.3506037974949 1994 -6.40681297720392 1995 -0.952773722405476 1996 1.86645280694768 1997 1.48504632778284 1998 29.7142575441256 1999 14.205091285827 2000 18.8970939162027 2001 14.7320851100136 2002 -33.737584258285 2003 43.632777362313 2004 55.1509404836495 2005 68.4527532849204 2006 88.2902723872157 2007 90.8053878688273 2008 96.8184993667626 2009 143.644282175952 2010 100.697024877382 2011 113.868090128186 2012 122.90054201659