Year Dollars 2002-01-01 18230 2003-01-01 115722 2005-01-01 225865 2006-01-01 375379 2008-01-01 121792 2010-01-01 364802 2011-01-01 150410 2012-01-01 187473 2013-01-01 519871 2014-01-01 348856 2015-01-01 198328 2016-01-01 695893