That's a good question. Unfortunately, they did not provide a breakdown or even all the sources. The ones that you listed were certainly the obvious ones that came to my mind as well. I do know that a ton of kids in our district received awards from Scholastic Arts and Writing. There are also kids who got scholarships through their parents' employers, which can be significant if they worked for some of the private universities. I believe that there are also many small awards like the $1000 awards from Carson Scholars Fund as well as more local community based awards.