Year Dollars 1997-01-01 15792 2002-01-01 47381 2004-01-01 98216 2005-01-01 42274 2006-01-01 131780 2007-01-01 58937 2008-01-01 547309 2010-01-01 65573 2011-01-01 763904 2012-01-01 631060 2013-01-01 278209 2015-01-01 514156 2016-01-01 1088978