Year Dollars 1992-01-01 316646706 1997-01-01 388011818 2002-01-01 271887235 2003-01-01 271270225 2004-01-01 386948327 2005-01-01 531489448 2006-01-01 682110226 2007-01-01 1267062547 2008-01-01 1373769207 2009-01-01 816946026 2010-01-01 803652317 2011-01-01 1178133177 2012-01-01 942618640 2013-01-01 913412653 2014-01-01 919666774 2015-01-01 617954916 2016-01-01 683975509