Year Dollars 1997-01-01 398626 2002-01-01 691165 2003-01-01 734950 2004-01-01 697247 2005-01-01 2829902 2006-01-01 3002922 2007-01-01 3932041 2008-01-01 11464490 2009-01-01 4888998 2010-01-01 5658476 2011-01-01 5070454 2012-01-01 8738669 2013-01-01 5655322 2014-01-01 7589246 2015-01-01 8504465 2016-01-01 15944144