In the following table regions with an unusually low incidence are labelled as 2000 (0.05), 150 (0.0), 300 (0.0), 200 (0.0), 500000 (0.1), 400 (0.0), 50 (0.0), 1500 (0.07), 400 (0.0), 300 (0.0).