Year % change from 1990 1991 -15.37567191539 1992 -4.26072836209603 1993 -7.78821149396779 1994 -9.65155349551024 1995 -0.982052544074163 1996 -3.03219380617058 1997 -0.758436001875751 1998 -10.2952745987885 1999 -0.98166499374106 2000 -5.40516449573888 2001 -6.56975324670293 2002 -8.99581833190586 2003 6.44418693877866 2004 -5.99927915638043 2005 31.0400688289391 2006 16.3209071778197 2007 197.046478911449 2008 88.7835182594339 2009 30.4928477586026 2010 83.0105684975836 2011 84.8406741825595 2012 86.6707798675353