Year Dollars 1992-01-01 216229 1997-01-01 529526 2002-01-01 233719 2003-01-01 1294889 2004-01-01 1594007 2005-01-01 615207 2006-01-01 383680 2007-01-01 524605 2008-01-01 487986 2009-01-01 1496197 2010-01-01 2117539 2011-01-01 1873896 2012-01-01 3267081 2013-01-01 1436520 2014-01-01 3310984 2015-01-01 6548814 2016-01-01 2315849