It is not possible to provide information prior to 1998-99 because of code differences prior to that date.YearEstimated Number of Patients Seen by GPs1998-991,6001999-20001,8002000-011,8002001-021,700These data refer to diagnoses known to the patients' GP. There may be other patients whose condition is managed by specialist services, such as child psychiatry, who may not see their GP for these conditions and will therefore not be included in the data.