Year Dollars 1997-01-01 703814 2002-01-01 1100935 2003-01-01 1901116 2004-01-01 4316993 2005-01-01 3610289 2006-01-01 6536687 2007-01-01 3251370 2008-01-01 10480183 2009-01-01 4327811 2010-01-01 6215499 2011-01-01 4296090 2012-01-01 8355570 2013-01-01 8499314 2014-01-01 6940386 2015-01-01 4121892 2016-01-01 3871699