Year Dollars 1992-01-01 5186546 1997-01-01 42084199 2002-01-01 23479554 2003-01-01 17635288 2004-01-01 15368044 2005-01-01 28430316 2006-01-01 31425856 2007-01-01 33404684 2008-01-01 49140684 2009-01-01 42236384 2010-01-01 28168337 2011-01-01 24257338 2012-01-01 57962204 2013-01-01 65990280 2014-01-01 86522500 2015-01-01 37902867 2016-01-01 60932782