Year Dollars 1992-01-01 14945450 1997-01-01 7295403 2002-01-01 8016392 2003-01-01 5789835 2004-01-01 7236335 2005-01-01 14711309 2006-01-01 11416368 2007-01-01 7085969 2008-01-01 26017860 2009-01-01 58759905 2010-01-01 53355637 2011-01-01 55423676 2012-01-01 15345273 2013-01-01 21400505 2014-01-01 23842037 2015-01-01 33604216 2016-01-01 39132733