Not sure about Star- are you talking about a state standardized test? I'm in CA and they give STAR yearly for kids in 2nd and up. It's a grade-level test based on the state standards that are required for that grade level. You get numbers and a category like Advanced, Proficient, Basic etc. You basically get "yes they get it" "they mostly get it" or oh yeah this is not good ;-)
I've never seen a chart that had grade level and percentile like for MAP/NWEA though. Because the test is only given to kids in that grade level, you won't find anything that shows any above level references.
