Year Dollars 1992-01-01 17486874 1997-01-01 25909490 2002-01-01 21021713 2003-01-01 17546349 2004-01-01 23060341 2005-01-01 24089507 2006-01-01 46515308 2007-01-01 64220551 2008-01-01 66401522 2009-01-01 49919544 2010-01-01 41594360 2011-01-01 51660414 2012-01-01 64633874 2013-01-01 51207832 2014-01-01 81644502 2015-01-01 54019936 2016-01-01 136410133