Year Dollars 1992-01-01 570573 1997-01-01 752878 2004-01-01 717350 2005-01-01 323189 2006-01-01 1504504 2007-01-01 713581 2008-01-01 551226 2009-01-01 306420 2010-01-01 399703 2011-01-01 531328 2012-01-01 665093 2013-01-01 109872 2014-01-01 36515 2015-01-01 217797