Hard to predict, you have the number of boards increasing and they should be including the estimate for the next years needs until they get the hard goals. This means there are too many variables to make any type of guess. The other thing is that Supply is one of the designators that has in the past not used all the spots they can give out if they feel the candidates aren't good enough to select, the last board selected 53, maybe they had 53 to give, or maybe they had more than that but just didn't like the remaining candidates.