Year Dollars 1992-01-01 185798784 1997-01-01 341359923 2002-01-01 153091816 2003-01-01 172826768 2004-01-01 193505351 2005-01-01 177771524 2006-01-01 251166223 2007-01-01 256381808 2008-01-01 319600079 2009-01-01 188452929 2010-01-01 221389284 2011-01-01 269453147 2012-01-01 379950453 2013-01-01 277987766 2014-01-01 263786638 2015-01-01 366300483 2016-01-01 339056914