In order to answer that question, you need to know what a normal person is. If you know, please leave a description in the comments section because I, for one, haven’t got a clue as to what normal person would be.

The reason I don’t know what normal consists of is because I know that each and every person’s behaviour is based on the interaction between their reasoning, emotion, perception, and self-awareness. That means that if you apply a scale of ten to each category and do the maths, then the world’s population can be broken down to groups of eight hundred thousand.
In my case, there are approximately 5 million people on the island of Ireland, so that means there could be six people on the island with identical personalities. However, that doesn’t mean that they’re normal. It just means that they are the same. They could be lunatics for all I know.
If you were to ask everyone you know if they’re normal, how many will answer yes or no. And, do you think knowing those answers will bring you any closer to understanding what normal is? Didn’t think so. Probably for the same reason as myself. I know quite a few people who think of themselves as normal.
In conclusion, you can’t label people. You can only accept them as they are because everyone and no one is normal from someone else’s perspective.
Remember, what’s normal to the spider is chaos to the fly.