Year Dollars 1992-01-01 10914993 1997-01-01 12147105 2002-01-01 5053089 2003-01-01 9457852 2004-01-01 16118979 2005-01-01 10544810 2006-01-01 5466642 2007-01-01 4652691 2008-01-01 7278208 2009-01-01 2035286 2010-01-01 2721366 2011-01-01 5567201 2012-01-01 6946051 2013-01-01 12218986 2014-01-01 12921606 2015-01-01 5742492 2016-01-01 2960709