Year Dollars 1997-01-01 128626 2004-01-01 45382 2007-01-01 44560 2008-01-01 52321 2009-01-01 25888 2010-01-01 70849 2011-01-01 42897 2012-01-01 160556 2013-01-01 186224 2014-01-01 94562 2015-01-01 102508 2016-01-01 179128