Year Dollars 1992-01-01 8383125 1997-01-01 13821400 2002-01-01 7501778 2003-01-01 9864029 2004-01-01 14547450 2005-01-01 6787012 2006-01-01 11485771 2007-01-01 14086055 2008-01-01 19513665 2009-01-01 19457709 2010-01-01 30117005 2011-01-01 26028571 2012-01-01 22740779 2013-01-01 25153608 2014-01-01 23713423 2015-01-01 26297521 2016-01-01 29554199