Which areas have a "Group 1" consisting of programs with a rounded mean of 5.0? (CORRECTED)

MOVING TO FRONT FROM YESTERDAY:  UPDATED

Most do not:  generally, the "Group 1" programs have a rounded mean of 4.5, meaning of course that there is some disagreement about what makes for excellence in the specialty.  But eight specialties have a "Group 1" consisting of programs (mostly only one program) with a rounded mean of 5.0, meaning specialists in those areas share more of a consensus.  Those areas and the programs with a rounded mean of 5.0 are below the fold: 

General Philosophy of Science (Pittsburgh); Philosophy of Physics (Michigan and Pittsburgh); Philosophy of Mathematics (Harvard); Mathematical Logic (Harvard); Philosophy of Mind (NYU); Philosophy of Religion (Notre Dame); Early Modern Philosophy:  17th Century (Yale); and Early Modern Philosophy:  18th Century (Yale).

UPDATE:  Benj Hellie (Toronto) writes with a fair observation:

Why does absence of a 5.0 program require dispute over what makes for excellence? It might also signify consensus, say, that excellence requires excellence in two things, not both of which is had by any department; or that excellence requires at least three marquee faculty, and that no department has more than two; or any number of things.

The converse, that presence of a 5.0 program requires consensus over what makes for excellence, is by contrast quite plausible (though — less likely, but not *obviously* false — it could also signify dispute over what makes for excellence combined with consensus that the 5.0 program is excellent in both ways).

Given the underlying scoring in some of the areas where Group 1 consists of a rounded mean of 4.5, I'm still skeptical that the explanation is the one Professor Hellie suggests, but it is possible in other cases.