Year Dollars 1997-01-01 28199 2002-01-01 77000 2005-01-01 202479 2006-01-01 268647 2007-01-01 295820 2008-01-01 253830 2009-01-01 390279 2010-01-01 327200 2011-01-01 411679 2012-01-01 485347 2013-01-01 348784 2014-01-01 227724 2015-01-01 550723 2016-01-01 514195