I don't have that long term of data, but without outing myself too much, I have some scores of my own from years back.
I took the WAIS-R (version 2) at age 17 with a FSIQ above the 99th percentile, but not at the 99.9th. I had a grad student administer the WAIS-III to me a few years back to get practice administering the test. I'm just hoping that he wasn't too good and not that I've gotten less intelligent over the years - lol! My numbers came out just at the bottom of the 98th percentile.
I am a member of Mensa and have scores that qualify me for some higher IQ societies, but again not things like Prometheus or the Triple Nine Society, or whatever those really high up ones with few members are!
