Year % change from 1990 1991 30.2125050676102 1992 47.4022962206494 1993 8.42235748887685 1994 29.4280976306653 1995 5.47531533868781 1996 -6.28459310062237 1997 123.597615214292 1998 10.8749619488719 1999 -12.7349826872705 2000 -35.3096715921239 2001 -40.4501794190888 2002 5.15631792426223 2003 -25.4553584195127 2004 -13.2401357627812 2005 -4.9463159541693 2006 17.3294485135145 2007 -23.0538701617509 2008 -39.4868107525061 2009 -28.0761518858177 2010 -38.5485911913833 2011 0.628240833035543 2012 1.56053420375657