Year Dollars 1992-01-01 10157856 1997-01-01 656994 2002-01-01 6576981 2003-01-01 8916925 2004-01-01 16096316 2005-01-01 24689947 2006-01-01 46987365 2007-01-01 39266627 2008-01-01 67377439 2009-01-01 45155665 2010-01-01 75016982 2011-01-01 93644397 2012-01-01 87480733 2013-01-01 78819501 2014-01-01 85691914 2015-01-01 27325017 2016-01-01 49517544