Year Dollars 1992-01-01 212230 1997-01-01 2934774 2004-01-01 2263037 2005-01-01 3335885 2006-01-01 5186534 2007-01-01 2820018 2008-01-01 4704044 2009-01-01 20423260 2010-01-01 4850220 2011-01-01 5457725 2012-01-01 12807114 2013-01-01 5440133 2014-01-01 8335087 2015-01-01 6931984 2016-01-01 3544080