[NSFW I think...] What is an average size penis?

Okay I know this may seem sort of inappropriate. But what is an average size penis? I’m not going to tell anyone my penis size since I have not freaking clue on what it is and I don’t feel like getting all of the material for it. I’m just wondering since I know most men are a little obsessive over the size and would be offended if a women or man (what ever) would say that you have a small Penis. Just what is average for a penis size?