Positive ESP seems to affect about 5% of the population.
That is, in controlled experiments, about 5% of subjects perform significantly better than random.
Another 5% perform significantly worse than random.
Interestingly, when re-examining their data, researchers have found that only about one in twenty subjects exhibit performance that is significantly different from random performance.
Another completely unrelated fact that parapsychologists do not eat significantly more jelly beans than real scientists.
