With regard to the political activities regime set out in the Public Service Employment Act: (a) how many allegations of improper political activities were reported between October 2015 and December 2016, broken down by department; (b) of the reports listed in (a), how many investigations were performed, broken down by department; (c) of the investigations listed in (b) how many resulted in disciplinary action, broken down by department; and (d) of the investigations listed in (b), how many were initiated by the Deputy Minister, the Associate Deputy Minister, and other management level officials?