(a) What is the total amount that was (i) budgeted for and (ii) spent on his private office (aa) in each of the past three financial years and (bb) since 1 April 2017 and (b) what was the (i) remuneration, (11) salary level, (iii) job title , (iv) qualification and (v) job description of each employee appointed in his private office in each of the specified periods?