Year Dollars 1992-01-01 22962935 1997-01-01 38528955 2002-01-01 5465081 2003-01-01 17304362 2004-01-01 12959549 2005-01-01 19518448 2006-01-01 32779212 2007-01-01 37758181 2008-01-01 27672192 2009-01-01 21081790 2010-01-01 20301907 2011-01-01 13367932 2012-01-01 19165503 2013-01-01 16614693 2014-01-01 12856621 2015-01-01 11152365 2016-01-01 16682199