Year Dollars 1997-01-01 1353647 2002-01-01 91986 2003-01-01 52772 2005-01-01 26717 2006-01-01 344820 2007-01-01 566362 2009-01-01 261505 2010-01-01 120791 2011-01-01 301883 2012-01-01 271251 2013-01-01 673073 2014-01-01 345017 2015-01-01 283994 2016-01-01 110462