Year Dollars 1992-01-01 144750 2002-01-01 301717 2003-01-01 522214 2005-01-01 177018 2006-01-01 192956 2007-01-01 508639 2008-01-01 411487 2010-01-01 263249 2011-01-01 371597 2015-01-01 28820 2016-01-01 127838