Year Dollars 1992-01-01 177540 1997-01-01 567558 2002-01-01 675371 2003-01-01 348862 2004-01-01 334215 2005-01-01 388219 2006-01-01 221449 2007-01-01 440748 2008-01-01 875556 2009-01-01 668008 2010-01-01 511604 2011-01-01 1212384 2012-01-01 1165349 2013-01-01 1164747 2014-01-01 1221112 2015-01-01 1322248 2016-01-01 865210