If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
Guessing the distribution before I look: Small-ish penalty for below-average intelligence, a flat line through average into slightly above average, then a small-ish penalty for above-average intelligence.
ETA: Oh. No data provided. Pity.