5.—(1) This paragraph shall apply in the case of a student who having, in any academic year, attended his course—
(a)in the case of a course provided at the University of Oxford or the University of Cambridge, for a period of 25 weeks 3 days; or
(b)in the case of any other course, for a period of 30 weeks 3 days,
in that year attends a course so provided for a further period (“the excess period”).
(2) In respect of each week and any part of a week comprised in the excess period the supplementary requirement shall be—
(a)in the case of a student residing at his parents' home £41·90;
(b)in the case of any other student, £59·80 except that—
(i)where he is attending a course at the University of London or at an institution within the area comprising the City of London and the metropolitan police district, it shall be £79·80;
(ii)where he is attending, for at least eight weeks and as a necessary part of his course, an overseas institution, it shall (notwithstanding anything in sub-paragraph (i)) be—
£111·70 if that country is a highest-cost country;
£94·65 if that country is a higher-cost country;
£77·50 if that country is a high-cost country; and
£60·35 in any other case.