Year Dollars 1992-01-01 5091323 1997-01-01 6854686 2002-01-01 1534465 2003-01-01 1221729 2004-01-01 4214572 2005-01-01 3387956 2006-01-01 7542884 2007-01-01 37506370 2009-01-01 40120565 2010-01-01 26545834 2011-01-01 25689246 2012-01-01 19876186 2013-01-01 46221424 2014-01-01 77275245 2015-01-01 51641390 2016-01-01 21907525