Year Dollars 1992-01-01 3681340 1997-01-01 23436575 2002-01-01 87060230 2003-01-01 62998059 2004-01-01 96725515 2005-01-01 104886811 2006-01-01 99406825 2007-01-01 175784313 2008-01-01 185993238 2009-01-01 111750058 2010-01-01 266603561 2011-01-01 221300790 2012-01-01 145831296 2013-01-01 180293858 2014-01-01 184367401 2015-01-01 295670746