Year Dollars 1992-01-01 189777 2004-01-01 2379452 2006-01-01 2153769 2007-01-01 317262 2008-01-01 3221754 2009-01-01 2224658 2010-01-01 393111 2011-01-01 280193 2012-01-01 612963 2013-01-01 644231 2015-01-01 472679 2016-01-01 241041