Year Dollars 1997-01-01 22800 2002-01-01 182838 2003-01-01 346986 2004-01-01 689348 2005-01-01 1431163 2006-01-01 6704456 2007-01-01 7468050 2008-01-01 2759804 2011-01-01 2386517 2013-01-01 13084013 2014-01-01 9283041 2015-01-01 1544307 2016-01-01 2486715