Year % change from 1990 1991 -15.1412052015279 1992 35.3684415593451 1993 3.76547204074391 1994 -10.809381674981 1995 6.17698831813089 1996 -25.1664614164353 1997 -23.789545457708 1998 283.714959610929 1999 266.08500838395 2000 -26.7138394317004 2001 -28.0239620948047 2002 -9.16042218928942 2003 -22.2741725632623 2004 84.0614498319731 2005 42.515324191001 2006 -6.97572481162204 2007 -23.3199050978591 2008 -23.4291399667425 2009 -28.7893019404844 2010 97.7471177997175 2011 99.7245889777147 2012 101.702060155712