Year Dollars 1992-01-01 9314646 1997-01-01 15408753 2002-01-01 5560299 2003-01-01 15287688 2004-01-01 17515907 2005-01-01 17143464 2006-01-01 14494754 2007-01-01 27290837 2008-01-01 21553859 2009-01-01 14126635 2010-01-01 37197172 2011-01-01 34094058 2012-01-01 30376246 2013-01-01 40763024 2014-01-01 72122133 2015-01-01 34650897 2016-01-01 33585849