Quarter US dollars 2004-06-30 0 2004-09-30 0 2004-12-31 0 2005-03-31 0 2005-06-30 0 2005-09-30 0 2005-12-31 0 2006-03-31 0 2006-06-30 0 2006-09-30 0 2006-12-31 0 2007-03-31 0