Year Dollars 1997-01-01 86850 2004-01-01 157820 2005-01-01 1087466 2006-01-01 197256 2007-01-01 277950 2008-01-01 288333 2009-01-01 48929 2010-01-01 60947 2011-01-01 185412 2013-01-01 1909823 2014-01-01 1760631 2015-01-01 605754