Year Dollars 1992-01-01 25424638 1997-01-01 20604203 2002-01-01 20487695 2003-01-01 26522301 2004-01-01 54049441 2005-01-01 40269205 2006-01-01 28738458 2007-01-01 28021023 2008-01-01 43005105 2009-01-01 95919825 2010-01-01 123436539 2011-01-01 35816389 2012-01-01 122394824 2013-01-01 141253266 2014-01-01 62023170 2015-01-01 57407482 2016-01-01 74807629