What (a) is the total number of incidents of (i) sexual harassment and (ii) sexual assault that were reported in his department (aa) in each of the past three financial years and (bb) since 1 April 2021, (b) number of cases (i) were opened and concluded, (ii) were withdrawn and (iii) remain open or pending based on the incidents and (c) sanctions were meted out against each person who was found guilty?