Year Dollars 1992-01-01 135597821 1997-01-01 384687511 2002-01-01 347574106 2003-01-01 397569418 2004-01-01 407345543 2005-01-01 485136467 2006-01-01 597802471 2007-01-01 659273592 2008-01-01 1190036918 2009-01-01 1050652820 2010-01-01 1252133072 2011-01-01 1326733689 2012-01-01 1533095238 2013-01-01 1509188848 2014-01-01 1576782794 2015-01-01 1609259464 2016-01-01 1440104324