Year Dollars 1992-01-01 934527 1997-01-01 2067486 2002-01-01 1679125 2003-01-01 11479597 2004-01-01 4929407 2005-01-01 10352217 2006-01-01 10029858 2007-01-01 22218983 2008-01-01 12825658 2009-01-01 6114984 2010-01-01 4804588 2011-01-01 4657443 2012-01-01 4249000 2013-01-01 3492002 2014-01-01 4725282 2015-01-01 4615672 2016-01-01 3839712