Year Dollars 2002-01-01 74086 2005-01-01 58573 2006-01-01 96768 2007-01-01 106573 2008-01-01 435737 2009-01-01 191586 2010-01-01 404680 2011-01-01 435845 2012-01-01 441635 2013-01-01 315981 2014-01-01 241062 2015-01-01 172017 2016-01-01 251252