Year Dollars 1992-01-01 8530616 1997-01-01 13487252 2002-01-01 25192412 2003-01-01 19439034 2004-01-01 33600108 2005-01-01 30575081 2006-01-01 19223335 2007-01-01 8942508 2008-01-01 19262200 2009-01-01 9652717 2010-01-01 25475975 2011-01-01 28017069 2012-01-01 19169304 2013-01-01 13712641 2014-01-01 22530083 2015-01-01 30564295 2016-01-01 57301333