Year Dollars 1992-01-01 2543836 1997-01-01 6866572 2002-01-01 3272534 2003-01-01 2727734 2004-01-01 2866436 2005-01-01 7120890 2006-01-01 2928058 2007-01-01 7712480 2008-01-01 7844949 2009-01-01 9594597 2010-01-01 5392047 2011-01-01 8993088 2012-01-01 9749263 2013-01-01 6509965 2014-01-01 4044348 2015-01-01 5397674 2016-01-01 9659659