Assuming you refer to Officer waiting times, I have to confess I'm a bit hazy on specific waiting times, unlike ratings. Obviously the smaller the branch, the fewer the regular intakes. Graduate entry tends to be Medical, Engineering & Training Management Officer, but they have regular intakes because they do generic officer training (they already have the "trade".)
Rather than give duff info, it's best to ask your specific OCLO, assuming you're actually in the selection process. If you tell me your intended trade, I'm happy to make a couple of calls to find out for you, if that helps.