How many people go to the sky 100?

The phrase "go to the sky 100" is unclear and doesn't seem to refer to a specific event or concept. If you're referring to a specific event, place, or idea, please provide more context so I can give you a precise answer. Otherwise, if you're asking about a general concept, like the number of people who travel to space, it's still a relatively small number, with only a few hundred individuals having gone to space since the dawn of human spaceflight.