Year Dollars 1997-01-01 262203 2002-01-01 284484 2004-01-01 73596 2005-01-01 117929 2006-01-01 293829 2007-01-01 782867 2010-01-01 932617 2011-01-01 380595 2012-01-01 405193 2013-01-01 506775 2014-01-01 704345 2015-01-01 498390 2016-01-01 517327