Unrestricted 100
Outstanding
85
Exceptional
60
Extensive
45
Very Good
30
Good
25
Average
20
Decent
15
Sporadic
10
Nominal
5
Minimal
1
This is what I've been able to figure out so far, but I have seen other categories:
Comprehensive, thorough, widespread, very broad, broad...
But haven't been able to figure out where they kick in.