Year % change from 1990 1991 -11.644162798415 1992 27.5876726822801 1993 4.42830097835949 1994 -6.57708002211056 1995 5.81201953041426 1996 -18.0464188874637 1997 -17.1703475880292 1998 370.438299186706 1999 375.557309370984 2000 -18.1244543805191 2001 -47.0325137598504 2002 15.450765415636 2003 -32.2471692841466 2004 153.359416193213 2005 77.3889777413472 2006 -16.7788424804898 2007 135.583338461352 2008 -29.1848462381157 2009 -18.7826863834497 2010 26.2420628642322 2011 435.892784326051 2012 436.761575991229