Year Dollars 2002-01-01 43932 2005-01-01 90036 2006-01-01 153240 2007-01-01 598555 2008-01-01 1523170 2009-01-01 818656 2010-01-01 2613409 2011-01-01 877612 2012-01-01 623694 2013-01-01 450150 2014-01-01 926428 2015-01-01 2220658 2016-01-01 316838