Year Dollars 1997-01-01 313757 2002-01-01 261159 2003-01-01 289185 2004-01-01 967583 2005-01-01 942955 2006-01-01 287827 2007-01-01 410349 2009-01-01 1130337 2010-01-01 450531 2011-01-01 440353