(1) What is the total number of teachers who have left the teaching profession during the past five years in each province; (2) whether she and/or her department (a) has any data on record regarding the reasons for such departures and (b) will provide this information; if not, why not; if so, what are the relevant details in each case; (3) whether any plans are in place to attract retired teachers back to the profession; if not, why not; if so, what are the relevant details?