Year Dollars 1992-01-01 467760 1997-01-01 439481 2002-01-01 1151699 2004-01-01 733880 2005-01-01 2826767 2006-01-01 4510106 2007-01-01 1281876 2009-01-01 3437797 2010-01-01 3114711 2011-01-01 2182912 2012-01-01 8214777 2013-01-01 9068594 2014-01-01 4618297 2015-01-01 9891824 2016-01-01 4897292