Year Dollars 1992-01-01 1237596 1997-01-01 1170783 2002-01-01 770883 2003-01-01 2973457 2004-01-01 5004074 2005-01-01 2531333 2006-01-01 2765328 2007-01-01 3813097 2008-01-01 9280562 2009-01-01 2216331 2010-01-01 4653283 2011-01-01 12308861 2012-01-01 7032590 2013-01-01 10340486 2014-01-01 5968183 2015-01-01 7346563 2016-01-01 6252343