Year Dollars 1992-01-01 312139393 1997-01-01 322944763 2002-01-01 859942026 2003-01-01 816245776 2004-01-01 918866258 2005-01-01 1285193977 2006-01-01 1498814365 2007-01-01 1648597388 2008-01-01 1625641652 2009-01-01 923847753 2010-01-01 1140517230 2011-01-01 1621070643 2012-01-01 1876579502 2013-01-01 1489766145 2014-01-01 1618319638 2015-01-01 1598124286 2016-01-01 1483988098