Year Dollars 2004-01-01 22517 2007-01-01 159530 2008-01-01 193674 2009-01-01 335095 2010-01-01 385371 2011-01-01 358328 2012-01-01 1182575 2014-01-01 610938 2015-01-01 437851 2016-01-01 330858