Year Dollars 1992-01-01 2270348136 1997-01-01 2544772359 2002-01-01 2483274379 2003-01-01 2447645064 2004-01-01 2278040105 2005-01-01 1985650848 2006-01-01 2462035168 2007-01-01 2807553183 2008-01-01 3196859169 2009-01-01 2551991494 2010-01-01 3062834943 2011-01-01 3822843893 2012-01-01 3783835131 2013-01-01 2789961368 2014-01-01 2838643468 2015-01-01 2366483326 2016-01-01 1911838768