"Not Applies" is used by people who are interested in watching the numbers for a particular institution. They may be considering applying at some time in the future. Maybe they want to watch the numbers to reinforce their decision not to apply. They could have a friend/family who applied and they are watching the shcool's stats. Perhaps the user works for admissions at that school or another school, and they have a spceial interest in the admissions stats? I'm sure I could think of other "alternate possibilities," but I'll leave those up to you.