Year Dollars 1992-01-01 467889 1997-01-01 403306 2002-01-01 5756901 2005-01-01 2365065 2006-01-01 856955 2008-01-01 2099157 2009-01-01 2357467 2010-01-01 2909069 2011-01-01 1238685 2012-01-01 2054687 2016-01-01 2296677