Year Dollars 1992-01-01 9730009 1997-01-01 8506516 2002-01-01 8965910 2003-01-01 8247168 2004-01-01 14285429 2005-01-01 9186758 2006-01-01 7457791 2007-01-01 16194913 2008-01-01 15298787 2009-01-01 9841564 2010-01-01 20027825 2011-01-01 23754141 2012-01-01 19691857 2013-01-01 16138852 2014-01-01 12604848 2015-01-01 10437070 2016-01-01 13311898