It differs by resort and even by day. ... But while some resorts were packed. Dixie Landings was over July 4th, for instance, but others were not.
There have been days this summer when the GF has been under 50% (not talking about DVC there, again, hotel).
I put the 65-75% range out because I feel 'safe' in doing so for a generality.
WDW can't fill its deluxe resorts. That is why DVC isn't going to the places I mentioned earlier. They have masterplanned a resort for the RC site. I saw this years ago. The plans were leaked online in the last 12-18 months. They want to build it. But do you know how much cheaper it is for Disney to simply take 350 (I don't know that is the number, but likely in the range) rooms out of the WL and simply convert them ... oh, and still raise rates at the WL annually?
The EPCOT idea? They went from the World Showcase Westcot-like idea to simply the parking lot. And when the plans started to get pricey (think new/reworked entrance and a parking structure at Epcot), it sorta went back-burner.