Year Dollars 1992-01-01 4224042 1997-01-01 5716854 2002-01-01 2966055 2003-01-01 1579797 2004-01-01 1966163 2005-01-01 1330420 2006-01-01 3707424 2007-01-01 2933771 2008-01-01 6705444 2009-01-01 15663507 2010-01-01 2926640 2011-01-01 3382979 2012-01-01 2308178 2013-01-01 2813569 2014-01-01 2928667 2015-01-01 2369702 2016-01-01 1844446