Assume nothing! If, for some reason, it is important to get an accurate gauge of how you rank compared to others, then find engage some kind of assessment that

Assume nothing! If, for some reason, it is important to get an accurate gauge of how you rank compared to others, then find engage some kind of assessment that will determine that. If that's not viable, then it probably isn't important to know (often when it is viable it also isn't important to know also).