Not per se. That is encompassed by the Total score of 99th %ile. It does seem intuitive that fewer children would earn 99s across the board, but there isn't sufficient power in the test to tease that out for sure. This is where moving to out-of-level testing might help to spread the distribution.

I would imagine that they don't provide additional information because the CogAT doesn't reliably generate a great deal of detail, as that is not it's design intent.

...pronounced like the long vowel and first letter of the alphabet...