I think probably between 1% and 3% have severe electrohypersensitivity. It's very difficult for them to survive in our type of world. Many of them have to move to the country, and they can't use computers. Probably another 35% have mild to moderate symptoms, which means when they come home after a day of work they have headaches, they feel awful, they can't sleep, but they can still trudge on.
Women's College Hospital in Toronto actually diagnoses people with electrical hypersensitivity, so we have diagnostic capabilities here in Canada.