Year Dollars 2002-01-01 54018 2004-01-01 155834 2005-01-01 111478 2006-01-01 233388 2007-01-01 435189 2008-01-01 296523 2009-01-01 199355 2010-01-01 261639 2011-01-01 106789 2013-01-01 455549 2014-01-01 1638776 2015-01-01 261763 2016-01-01 532998