With reference to the Minister of Higher Education and Training’s reply to question 1125 on 24 May 2018, (a) what number of subjects did learners enrol for in respect of the (i) Senior Certificate and (ii) National Senior Certificate examination cycles in each of the past three academic years at each community education and training college and (b) of the specified subjects, what number of (i) subjects were eventually written and (ii) students achieved marks (aa) equal to 40% and above and (bb) between 30% and 40% in each case?