Year Dollars 1997-01-01 145030 2003-01-01 42693 2004-01-01 156558 2005-01-01 259189 2006-01-01 249430 2007-01-01 431476 2008-01-01 654485 2011-01-01 235645 2012-01-01 2863017 2013-01-01 1183507 2016-01-01 1149821