Year Dollars 1992-01-01 63905 1997-01-01 59951 2002-01-01 496444 2003-01-01 201264 2004-01-01 168995 2006-01-01 322523 2007-01-01 539854 2008-01-01 555769 2009-01-01 363073 2010-01-01 227337 2011-01-01 260391 2012-01-01 454265 2013-01-01 449149 2014-01-01 379971 2015-01-01 405698 2016-01-01 317333