Year Dollars 1997-01-01 36509 2002-01-01 551349 2003-01-01 238258 2004-01-01 205243 2005-01-01 1344366 2006-01-01 241425 2007-01-01 551987 2008-01-01 459076 2009-01-01 633706 2010-01-01 560418 2011-01-01 812654 2012-01-01 828961 2013-01-01 904723 2014-01-01 1180535 2015-01-01 1163301 2016-01-01 1475436