These percentiles are a bit shady, I'll admit, because "programmers" isn't a well-defined group. I have a pretty strong sense that I'm 1.7-1.8 on the software engineer scale but a weak sense of how to define the population. Whether I'm 96th percentile vs. 99th depends more on how tightly or loosely we define "programmer". I tend to think of myself as about 94th because I define it tightly, but I would usually say that I'm 96-97th in congruence with the looser definition that a lot of people use.
