Year Dollars 1992-01-01 464468 1997-01-01 99537 2002-01-01 238576 2003-01-01 256785 2004-01-01 125170 2005-01-01 81817 2006-01-01 350382 2007-01-01 654785 2008-01-01 639012 2009-01-01 309651 2010-01-01 326589 2011-01-01 841438 2012-01-01 1446284 2013-01-01 1213075 2014-01-01 1388118 2015-01-01 1097704 2016-01-01 866909