Year Dollars 1992-01-01 4453136 1997-01-01 2334272 2002-01-01 2018923 2003-01-01 1422514 2004-01-01 18351065 2005-01-01 17051124 2007-01-01 46148783 2009-01-01 13367005 2010-01-01 4226269 2011-01-01 4247472 2012-01-01 5296470 2013-01-01 3067881 2014-01-01 3518059 2015-01-01 52345327 2016-01-01 80410943