Year Dollars 1992-01-01 842180 1997-01-01 334055 2002-01-01 767941 2003-01-01 1693167 2004-01-01 2419052 2005-01-01 5721880 2006-01-01 16062793 2007-01-01 19618344 2008-01-01 20387460 2009-01-01 6476845 2010-01-01 13209305 2011-01-01 12388185 2012-01-01 11808505 2013-01-01 19659246 2014-01-01 13608734 2015-01-01 10953596 2016-01-01 11265757