See Staminist’s reporting of users from 2015
Average FTP 232 (all users, n=2015)
Average FTP 237 (own a powermeter, n=955)
Average W/kg 3.02 (powermeter owners only)
Given the size of the cohort, the bell curve shape is not likely to have changed (unless we have all got fitter in the last three years) even though n=>10000