Year Dollars 2002-01-01 394356 2008-01-01 9772883 2009-01-01 6799145 2010-01-01 8303831 2011-01-01 6284490 2012-01-01 3052934 2013-01-01 9323519 2014-01-01 24134752 2015-01-01 12383172