Year Dollars 1992-01-01 7546717 1997-01-01 10274712 2002-01-01 24635121 2003-01-01 12884276 2004-01-01 13612505 2005-01-01 20876802 2006-01-01 19930415 2007-01-01 33140938 2008-01-01 25346823 2009-01-01 22968669 2010-01-01 34122392 2011-01-01 34036180 2012-01-01 21401175 2013-01-01 19493880 2014-01-01 29922471 2015-01-01 133611375 2016-01-01 70731039