Year Dollars 1997-01-01 3708549 2002-01-01 743258 2003-01-01 900324 2004-01-01 1593452 2005-01-01 894880 2006-01-01 1627619 2007-01-01 2447204 2008-01-01 3598025 2009-01-01 6201770 2010-01-01 7284578 2011-01-01 7222999 2012-01-01 4388059 2013-01-01 3227694 2014-01-01 2527771 2015-01-01 3307634 2016-01-01 1114380