Year Dollars 1992-01-01 9068906 1997-01-01 14908140 2002-01-01 9399999 2003-01-01 15235575 2004-01-01 9160631 2005-01-01 11163226 2006-01-01 12412257 2007-01-01 15994400 2008-01-01 8066240 2009-01-01 8138743 2010-01-01 10988545 2011-01-01 12648845 2012-01-01 10083851 2013-01-01 13244963 2014-01-01 9807951 2015-01-01 11677246 2016-01-01 10957094