Year Dollars 1992-01-01 460927 1997-01-01 2315404 2002-01-01 635150 2003-01-01 611982 2004-01-01 1753292 2005-01-01 321361 2007-01-01 659806 2008-01-01 826691 2009-01-01 338831 2010-01-01 1110924 2012-01-01 8441964 2013-01-01 8269316 2014-01-01 16115610 2015-01-01 1501325 2016-01-01 1481093