Year Dollars 1992-01-01 3664284 1997-01-01 5646744 2002-01-01 2329482 2003-01-01 3012235 2004-01-01 5238152 2005-01-01 6392695 2006-01-01 6390343 2007-01-01 6721774 2008-01-01 9033470 2009-01-01 6373558 2010-01-01 12052847 2011-01-01 8540818 2012-01-01 7499227 2013-01-01 7261648 2014-01-01 6451027 2015-01-01 8132556 2016-01-01 7421856