Year Dollars 1997-01-01 37863 2003-01-01 37066 2006-01-01 225114 2007-01-01 55178 2008-01-01 25387 2009-01-01 69460 2010-01-01 28712 2013-01-01 60865 2014-01-01 31057 2016-01-01 35410