How to quantify that?
Number of surveillance cameras per square km?
Being members of international intelligence sharing networks?
Data protection laws in place? Level of enforcement?
Not sure theres an easy answer to the question, I think you'd have to put together data based on a wide set of criteria, and even then you would only be able to work off publically accessible/known info
Why do you ask? Did your government put a camera in your bathroom?
Buy a nice TV
Give it a static IP
Firewall it off from the internet
Voila!
Edit: Make sure it cant call UPNP on your router or any such tomfoolery