Year Dollars 2002-01-01 5950421 2003-01-01 5657099 2004-01-01 9820414 2005-01-01 11407518 2006-01-01 15466554 2007-01-01 23421870 2008-01-01 21630362 2009-01-01 25047672 2010-01-01 24434350 2011-01-01 24788891 2012-01-01 22120534 2013-01-01 14433228 2014-01-01 14356037 2015-01-01 20980997 2016-01-01 20700958