Year Dollars 1992-01-01 765703 1997-01-01 982422 2002-01-01 593746 2003-01-01 1004966 2004-01-01 407077 2005-01-01 3146815 2006-01-01 2188794 2007-01-01 2232104 2010-01-01 1177963 2011-01-01 687233