I'm sorry, my data are not divided that way. But based on the information I do have, about one-third of the lighthouses they looked at were designated as recognized, which is the lower level of recognition. About 20 of them were recognized as classified, which is the higher level of recognition.
Part of the difficulty here is that if we take as our standard the level that we see as recognized, we get five times as many lighthouses than if we say that the qualities we're looking for in a classified building are the kinds of qualities we want.