Year Dollars 1997-01-01 54184 2003-01-01 120044 2004-01-01 68471 2005-01-01 164687 2007-01-01 408458 2008-01-01 473343 2009-01-01 587530 2010-01-01 412651 2011-01-01 1244516 2012-01-01 394832 2013-01-01 319421 2015-01-01 330024