Year Dollars 1992-01-01 2720896 1997-01-01 4043411 2002-01-01 446324 2004-01-01 885696 2005-01-01 2912515 2006-01-01 356027 2007-01-01 250289 2008-01-01 2752541 2009-01-01 2074195 2010-01-01 604369 2011-01-01 226973 2012-01-01 447174 2013-01-01 1159855 2014-01-01 865335 2015-01-01 220532 2016-01-01 1445923