Year Dollars 1992-01-01 117895569 1997-01-01 287158850 2002-01-01 324218226 2003-01-01 331714690 2004-01-01 419573961 2005-01-01 391876683 2006-01-01 413615048 2007-01-01 482530872 2008-01-01 619653235 2009-01-01 449127275 2010-01-01 537488806 2011-01-01 637986657 2012-01-01 673053153 2013-01-01 617234780 2014-01-01 620295453 2015-01-01 677866264 2016-01-01 677343487