At what age did you know you were gay,bi or whatever?

In a recent discussion the topic came up at what age most people figure out their sexuality. Everyone I have asked didn't know until their teens at least, numerous articles online don't really have an answer they just say it could happen whenever basically. You could be very young and know or you might not know till later in life. So I'm just trying to get another source. Thanks for the help... P.S. For me I was 14 when I knew...or at least started getting the idea.