What quantity of teens worldwide have commited suicide due to bullying?

Unknown: Likely a much higher number than anyone knows. Many teens/kids don't leave details when they commit suicide, so many people don't know the why? Were they bullied - perhaps. But as often as we know they were, there are probably more that were bullied and never confided that fact to anyone and suffered in silence. It is a very sad and deadly situation that these kid's emotional needs are ignored.