Year Dollars 1992-01-01 9166734 1997-01-01 58629653 2002-01-01 14262946 2003-01-01 29922026 2004-01-01 37988345 2005-01-01 37913403 2006-01-01 41602281 2007-01-01 55586148 2008-01-01 53750597 2009-01-01 51930499 2010-01-01 68148715 2011-01-01 79412681 2012-01-01 78751343 2013-01-01 72605843 2014-01-01 75338742 2015-01-01 115029024 2016-01-01 57106122