Was just thinking about it, but how many people nationally do you think get into all of HYPS? That sounds like an incredibly hard feat. If you know someone like that, what do they do/stats?
Schools have different pools of applicants annually. They will probably have goals for a class by year or school. Goals may not be identified. So, knowing the stats of admits of HYPS does not provide useful information by school or year is unlikely helpful. One admit for each school won’t provide a sufficient guide. Your best procedure is developing a superior profile AND hoping for the best.