Year Dollars 1992-01-01 92408 2002-01-01 13164 2005-01-01 70631 2006-01-01 26664 2009-01-01 140607 2010-01-01 59941 2011-01-01 188991 2012-01-01 647087 2013-01-01 331138 2014-01-01 134652 2015-01-01 483802 2016-01-01 730852