Year Dollars 1997-01-01 241758 2002-01-01 162339 2003-01-01 73383 2004-01-01 280815 2006-01-01 489626 2007-01-01 448020 2008-01-01 478703 2009-01-01 1230774 2010-01-01 626760 2011-01-01 612351 2012-01-01 533669 2013-01-01 586786 2014-01-01 623754 2015-01-01 860452 2016-01-01 1003618