40% is not the median of the studies which appear to have it at 70%. I’m of the view that it’s 80%+. I think there are some improvements that can be made to the

40% is not the median of the studies which appear to have it at 70%. I’m of the view that it’s 80%+. I think there are some improvements that can be made to the studies but I have not had a good enough reason to redo their math.