Year Dollars 1997-01-01 12221361 2002-01-01 17213527 2003-01-01 4312728 2004-01-01 22903375 2005-01-01 56554345 2006-01-01 13986904 2007-01-01 14641567 2008-01-01 24872910 2009-01-01 17566719 2010-01-01 19691501 2011-01-01 92252671 2012-01-01 23333608 2013-01-01 7510787 2014-01-01 8604276 2015-01-01 34080080 2016-01-01 6606827