Pukin Dog said "THE SHORT LIST WAS 5 WOMEN, 3 declined, 1 was disqualified on her history, and Miers was left holding the trophy."
That's 80% fallout on a 5 item list.
In any case, your numbers show 60% declined, and only get to 80% by adding in another disqualified candidate.
My read continues to be that this is not what Dobson is referring to here.