Year Dollars 1997-01-01 263027 2002-01-01 449623 2003-01-01 312964 2004-01-01 247923 2005-01-01 393241 2006-01-01 1260928 2007-01-01 958903 2008-01-01 1287769 2009-01-01 1156413 2010-01-01 964305 2011-01-01 589277 2012-01-01 542177 2013-01-01 864884 2014-01-01 287540 2016-01-01 5318004