Year Dollars 1992-01-01 432849 1997-01-01 1330934 2002-01-01 4298050 2003-01-01 2002861 2004-01-01 4717304 2005-01-01 9670732 2006-01-01 9683587 2007-01-01 5992901 2008-01-01 4633284 2009-01-01 1303488 2010-01-01 1966788 2011-01-01 2907679 2012-01-01 1001924 2013-01-01 510174 2014-01-01 1082521 2015-01-01 2116627 2016-01-01 2530080