Year Dollars 1992-01-01 2048889 1997-01-01 5854791 2002-01-01 3194558 2003-01-01 7255025 2004-01-01 5105829 2005-01-01 6527574 2006-01-01 5567908 2007-01-01 15262824 2008-01-01 27949510 2009-01-01 10418522 2010-01-01 15158359 2011-01-01 9961986 2012-01-01 15760280 2013-01-01 12625246 2014-01-01 16877520 2015-01-01 28101847 2016-01-01 26239040