Year Dollars 1992-01-01 5925525 2002-01-01 21587232 2003-01-01 3590734 2004-01-01 5035575 2005-01-01 9799305 2006-01-01 13147338 2007-01-01 9759673 2008-01-01 5937252 2009-01-01 5344831 2010-01-01 16962306 2011-01-01 6208978 2012-01-01 6013211 2013-01-01 10341823 2014-01-01 4792876 2015-01-01 4567373 2016-01-01 5254478