Thanks for posting that graph, very interesting. Notice how for each age group it’s a more or less normal distribution, except for older boys/men, where those who are significantly above average are much bigger, more than we’d expect. Also notice the trend line at age 19. It looks like bigger guys have stopped growing while average guys are still growing a little and smaller guys growing significantly. It would be good to see this with another five years. It looks like there’s a lot of catching up happening, that some are just late bloomers. It looks like only 0.7 inches difference between top and bottom ten percent, and that’s before catching up. I’m 7.5 bpfsl (7.25 bpel, 6.5 nbpel) and I’d be much bigger then the top ten percent of guys there (who again, look like they’ve stopped growing). The average seems similar to other western populations.