Year Dollars 2004-01-01 449463 2005-01-01 469139 2006-01-01 225478 2007-01-01 133654 2008-01-01 92521 2009-01-01 458464 2010-01-01 597220 2012-01-01 335996 2013-01-01 458117 2016-01-01 349359