Year Dollars 1997-01-01 289768 2002-01-01 73405 2003-01-01 188465 2004-01-01 275323 2005-01-01 424089 2006-01-01 952258 2007-01-01 669285 2008-01-01 1273877 2009-01-01 794580 2010-01-01 1268818 2011-01-01 1165284 2012-01-01 2071900 2013-01-01 4297267 2015-01-01 1303909 2016-01-01 547197