Year Dollars 1992-01-01 212887793 1997-01-01 263608327 2002-01-01 437356897 2003-01-01 260072846 2004-01-01 388783237 2005-01-01 410195077 2006-01-01 1170843271 2007-01-01 430213239 2008-01-01 603511506 2009-01-01 601992762 2010-01-01 801413522 2011-01-01 621527161 2012-01-01 456086231 2013-01-01 1240782088 2014-01-01 448161028 2015-01-01 278599912 2016-01-01 297628598