Year Dollars 1992-01-01 13006934 1997-01-01 36229729 2002-01-01 28872785 2003-01-01 28048110 2004-01-01 25179804 2005-01-01 32238536 2006-01-01 41542262 2007-01-01 79128758 2008-01-01 83442169 2009-01-01 50533266 2010-01-01 81997388 2011-01-01 140913553 2012-01-01 61367724 2013-01-01 74052684 2014-01-01 66669533 2015-01-01 50375375 2016-01-01 39195832