Year Dollars 1992-01-01 2524595 1997-01-01 8159200 2002-01-01 23291807 2003-01-01 5555435 2004-01-01 13664518 2005-01-01 10133397 2006-01-01 12592851 2007-01-01 10450687 2008-01-01 12518483 2009-01-01 12060695 2010-01-01 8888005 2011-01-01 14502134 2012-01-01 11127247 2013-01-01 10844987 2014-01-01 9536611 2015-01-01 10906650 2016-01-01 9223154