As of October, I estimate there are roughly 177mm  users, which means it has been adopted by ~3.1% of world adults and ~3.8% of internet users.

(~7.8bn people on Earth, 5.8bn adults, 4.66bn internet users.)

Image and thread below for more info...
https://t.co/wABmL99scJ https://t.co/l9HQGHdSGL