Extraversion and Neuroticism norms

Hi stats individuals,
I just ran a pilot study on a survey which includes Extraversion scale, Neuroticism scale, Social connectedness scale and Workplace isolation scale.
Now I am stuck with the statistics because I dont know the exact norm of each scale as in: what % is considered high extraversion or low extraversion, high neuroticism or low neuroticism ect.
So can somebody help me and tell me what's the terminology or how to find the % on each of this scales?

Thanks in advance,