Year Dollars 2002-01-01 1442421 2003-01-01 1716147 2004-01-01 1637732 2005-01-01 7967688 2006-01-01 2081070 2007-01-01 9639741 2008-01-01 10327209 2009-01-01 2892352 2010-01-01 8537121 2011-01-01 8324540 2012-01-01 7175298 2013-01-01 9765494 2014-01-01 15126674 2015-01-01 6526673 2016-01-01 4125439