Year Dollars 1992-01-01 26083363 1997-01-01 19407572 2002-01-01 18426248 2003-01-01 23964109 2004-01-01 26834981 2005-01-01 38763442 2006-01-01 41506907 2007-01-01 50243652 2008-01-01 68725637 2009-01-01 35368476 2010-01-01 54013517 2011-01-01 42133863 2012-01-01 12476681 2013-01-01 17360275 2014-01-01 18475842 2015-01-01 15370611 2016-01-01 15830263