Year Dollars 1997-01-01 34419 2002-01-01 291665 2003-01-01 560682 2004-01-01 154362 2006-01-01 147377 2007-01-01 988100 2008-01-01 1481110 2009-01-01 624124 2011-01-01 1594370 2013-01-01 604717 2014-01-01 607902 2016-01-01 1969056