Year Dollars 1992-01-01 69672180 1997-01-01 101075756 2002-01-01 229160254 2003-01-01 234608626 2004-01-01 205920470 2005-01-01 200774698 2006-01-01 174682036 2007-01-01 189548598 2008-01-01 241617739 2009-01-01 296495253 2010-01-01 283330383 2011-01-01 321561328 2012-01-01 312118160 2013-01-01 356462806 2014-01-01 482027663 2015-01-01 398114667 2016-01-01 381627223