Year % change from 1990 1991 -2.44249065417534E-13 1992 -2.44249065417534E-13 1993 -4.9960036108132E-13 1994 -2.44249065417534E-13 1995 -2.44249065417534E-13 1996 -2.44249065417534E-13 1997 -4.9960036108132E-13 1998 604.999999999998 1999 992.499999999997 2000 2002.5 2001 -100 2002 1650 2003 6349.99999999998 2004 57.4999999999996 2005 2174.99999999999 2006 179.999999999999 2007 1510 2008 419.999999999999 2009 647.500000000001 2010 310.000000000009 2011 309.999999999994 2012 309.999999999989