Year Dollars 1997-01-01 171040 2002-01-01 298930 2003-01-01 296858 2004-01-01 767305 2005-01-01 150625 2006-01-01 309746 2007-01-01 230241 2008-01-01 154455 2009-01-01 592783 2011-01-01 138827 2016-01-01 940669