An AI that is successfully "Friendly" poses an extistential risk of a kind that other AIs don't pose. The main risk from an unfriendly AI is that it will kill all humans. That isn't much of a risk; humans are on the way out in any case. Whereas the main risk from a "friendly" AI is that it will successfully impose a single set of values, defined by hairless monkeys, on the entire Universe until the end of time.

And, if you are afraid of unfriendly AI because you're afraid it will kill you - why do you think that a "Friendly" AI is less likely to kill you? An "unfriendly" AI is following goals that probably appear random to us. There are arguments that it will inevitably take resources away from humans, but these are just that - arguments. Whereas a "friendly" AI will be designed to try to seize absolute power, and take every possible measure to prevent humans from creating another AI. If your name appears on this website, you're already on its list of people whose continued existence will be risky.

(Also, all these numbers seem to be pulled out of thin air.)