propably 90th percentile. i know people that are smarter than me. for the highschool admissions there was test that was scored from 0 to 800, like 15% of people got into one of them with a score of 470 . the 97th percent was 560 and that's one of the highest ranking highschools in the country. i got a 508. that's not relevant i'm just saying i knew lots of people and none of them got much higher than 650, which is like, another two standard deviations above me.