Year Dollars 2002-01-01 8735224 2003-01-01 7871838 2004-01-01 10729210 2005-01-01 18437558 2006-01-01 17307235 2007-01-01 18809039 2008-01-01 26935594 2009-01-01 14962287 2010-01-01 14793819 2011-01-01 22017751 2012-01-01 22995649 2013-01-01 22197452 2014-01-01 16304645 2015-01-01 23934298 2016-01-01 16635583