The year before last, I noticed plenty around, I think they were the larger German variety, which was very aggressive and I had to have a large nest destroyed in the attick.
Last year they where conspicuous by their absence and up to now I hadn't seen many this year either.
But I did stumble across a nest this morning while watering the garden, these where much smaller and seemed to be coming from a hole in the ground, when they started to get agitated I decided to make myself scarce.
I think, when the storm hits a lot of the colonies will drown and the numbers will drop once again.