You will only receive emails for the datasets and geographical regions that you subscribe to, so frequency of emailing will vary. Dataset timings are set so that users should not expect more than one email a week at most. Based on historical data, for each dataset we expect to generate signals in no more than thirty to forty locations each year. We have also set a limit to only signal for a location-dataset once per 6 months, unless the situation has significantly changed. For more detailed information on how signals are generated for the datasets you are interested in, please refer to our methodology.