Year Dollars 2002-01-01 257613 2003-01-01 29339 2004-01-01 285015 2005-01-01 138036 2006-01-01 896724 2007-01-01 2836363 2008-01-01 11807560 2009-01-01 6708540 2010-01-01 38622365 2011-01-01 43840423 2012-01-01 24961945 2013-01-01 11670275 2014-01-01 9084573 2015-01-01 19965086 2016-01-01 4536018