Year Dollars 1992-01-01 8049725 1997-01-01 16548192 2002-01-01 8134118 2003-01-01 6033521 2004-01-01 6183415 2005-01-01 10740696 2006-01-01 9099877 2007-01-01 9333014 2008-01-01 10858300 2009-01-01 11309530 2010-01-01 10909519 2011-01-01 12428447 2012-01-01 14576800 2013-01-01 14933417 2014-01-01 12837874 2015-01-01 19643467 2016-01-01 10889597