How many rooms do the Deluxe Resorts set aside for Free Dining?

[CR Resort Fan 4 Life]

I know that with each promotion the resorts set aside so many rooms at each location. Now when it comes to Free Dining how rooms do you think the Deluxe Resorts set aside for them? From what I have read on here most people would rather stay at the Deluxe Resorts with a room only discount then Free Dining since you need to pay the rack rate. So knowing that how many rooms at the Deluxe Resorts do you think WDW sets aside for Free Dining?