Year Dollars 1992-01-01 446615 1997-01-01 542291 2002-01-01 573826 2003-01-01 2227892 2004-01-01 1199423 2005-01-01 313270 2006-01-01 743138 2007-01-01 645522 2008-01-01 412410 2009-01-01 466545 2010-01-01 708491 2011-01-01 870736 2012-01-01 865787 2013-01-01 728522 2014-01-01 994524 2015-01-01 1806609 2016-01-01 827570