Year Dollars 1997-01-01 67029 2002-01-01 561368 2005-01-01 741106 2006-01-01 697879 2007-01-01 1695438 2008-01-01 538897 2009-01-01 608317 2010-01-01 2444846 2011-01-01 578818 2013-01-01 2924214 2014-01-01 2619787 2015-01-01 7869848 2016-01-01 3662170