Year Dollars 1997-01-01 10521350 2002-01-01 3399509 2003-01-01 3073551 2004-01-01 10456484 2005-01-01 9044418 2006-01-01 4628908 2007-01-01 4040740 2008-01-01 46586640 2009-01-01 23751708 2010-01-01 15680881 2011-01-01 9906670 2012-01-01 12397280 2013-01-01 12890883 2014-01-01 10842228 2015-01-01 5240473 2016-01-01 7423865