Year Dollars 1992-01-01 12464 1997-01-01 15617 2002-01-01 259566 2003-01-01 99822 2004-01-01 179894 2005-01-01 285907 2006-01-01 231205 2007-01-01 235405 2008-01-01 404846 2009-01-01 254588 2010-01-01 390201 2011-01-01 398876 2012-01-01 162238 2013-01-01 561333 2014-01-01 344502 2015-01-01 457876 2016-01-01 374167