Year % change from 1990 1991 4.88498130835069E-13 1992 4.88498130835069E-13 1993 1.48769885299771E-12 1994 4.88498130835069E-13 1995 9.99200722162641E-13 1996 9.99200722162641E-13 1997 4.88498130835069E-13 1998 14858.0500000001 1999 13106.2000000001 2000 15448.4000000001 2001 12243.1000000001 2002 16770.0000000001 2003 13211.0500000001 2004 12519.5500000001 2005 14276.0000000001 2006 10760.0000000001 2007 10762.0500000001 2008 9372.60000000005 2009 10342.2000000001 2010 10172.0000000001 2011 10172.0000000001 2012 10172.0000000001