Year Dollars 1992-01-01 210733 2002-01-01 18334 2003-01-01 23497 2006-01-01 60447 2007-01-01 159896 2008-01-01 74907 2010-01-01 77461 2013-01-01 416634 2014-01-01 113893 2015-01-01 120588 2016-01-01 518642