Year Dollars 1992-01-01 3501028 1997-01-01 2292819 2002-01-01 6945158 2003-01-01 10524670 2004-01-01 7070621 2005-01-01 8563201 2006-01-01 9481376 2007-01-01 14575281 2008-01-01 12112123 2009-01-01 10143389 2010-01-01 7717186 2011-01-01 9924108 2012-01-01 13800052 2013-01-01 13563865 2014-01-01 11325628 2015-01-01 13008351 2016-01-01 13846021