Year Dollars 1992-01-01 3027889 1997-01-01 5134464 2002-01-01 10925005 2003-01-01 11177271 2004-01-01 40502281 2005-01-01 42807832 2006-01-01 11652583 2007-01-01 7929851 2008-01-01 22662577 2009-01-01 7025404 2010-01-01 15563601 2011-01-01 10553851 2012-01-01 20437334 2013-01-01 17530078 2014-01-01 7745746 2015-01-01 6624532 2016-01-01 8745057