Some of the studies linked are from the last ten years, but whatever I think we've explained our positions well enough at this point and there's not much use in continuing.
(I inadvertently edited my comment after you wrote yours --- I just forgot to hit the "update" button. The first graf is the same, but the second graf appeared on the thread after you wrote yours. Just for the record, for anybody that might happen to read this.)
Have a good weekend!