Not useless, just unnecessary to have in that particular spot. Honestly, do you need to check this information often enough for it to warrant a place on the Country Ranking page?
Like I said, I do think that it would be interesting to have access to it, but it would be like posting a train station map on the wall of a high school, just in case a kid at that high school needs to go get on a train. The information is potentially useful and potentially interesting, but there's no reason to have it out in such a conspicuous place where it would only be clutter.