Year Dollars 1997-01-01 1007342 2002-01-01 615751 2003-01-01 1121560 2004-01-01 1600007 2005-01-01 2881519 2006-01-01 4010070 2007-01-01 4153566 2008-01-01 6004161 2009-01-01 2172511 2010-01-01 12361837 2011-01-01 8454883 2012-01-01 4094514 2013-01-01 3419074 2014-01-01 6616388 2015-01-01 3610638 2016-01-01 3190923