They arrest thousands of people under the communications act, which covers everything from the mail to Whatsapp. If I was your neighbour and I called you up on the phone and threatened to break your legs if your dog didn't stop barking, and you called the police on me, I'd likely be in those stats.

It's clear they arrest some people for posts online, and that is bad. But the numbers aren't clear at all, and the one bandied around most in public at the moments is so not informative that its use is basically propaganda.