Year Dollars 1992-01-01 14831837 1997-01-01 15607304 2002-01-01 16031302 2003-01-01 21651723 2004-01-01 15016127 2005-01-01 22453263 2006-01-01 27035612 2007-01-01 26518503 2008-01-01 26060148 2009-01-01 31012108 2010-01-01 27574495 2011-01-01 34197584 2012-01-01 29323393 2013-01-01 29048274 2014-01-01 28587279 2015-01-01 21293328 2016-01-01 33409934