Most Surveilled Cities in the World

I've added the region as a hint

A number of websites have the same data. Here are 2 of them:https://ceoworld.biz/2019/08/20/these-are-the-most-heavily-surveilled-cities-in-the-world-for-2019/; https://www.comparitech.com/vpn-privacy/the-worlds-most-surveilled-cities/

One problem with the methodology seems to be that most stats use the population of the metro area, whilst some, especially in the USA, seem to use the city proper population