Quyidagi jadval o'quvchilarning o'quv muddatlari bo'yicha taqsimotini ko'rsatadi. Jadvalda o'quvchilarning ko'pchiligi joylashgan ikkita chegara ko'rsatilgan. Birinchi chegara o'quv davomida hech qanday ta'tilsiz 36 ta muddatni muvaffaqiyatli tugatgan o'quvchilarni ifodalaydi (jadvalda qora kvadrat bilan ko'rsatilgan), shu tariqa maktab bosqichlarini eng kam muddat bo'lgan 9 yilda tugatadi. Ikkinchi chegara har yili bir o'quv muddatini ta'tilga olib, barcha muddatlarni muvaffaqiyatli topshirgan o'quvchini ifodalaydi (jadvalda kulrang kvadrat bilan ko'rsatilgan); shunday o'quvchi maktab bosqichlarini 12 hijriy yilda tugatadi. O'quvchilarning ko'pchiligi ushbu ikki chegara orasida joylashadi (jadvalda diagonal kvadratlar bilan ko'rsatilgan).

The following chart demonstrates the distribution of students across school terms. The chart shows two boundaries within which most students fall. The first represents students who successfully complete 36 terms without taking any holiday during their study (as shown in the chart by a black square) thus completing the school stages in 9 years, the minimum time period to complete the 3 school stages. The other boundary represents a student who take one study term yearly for holiday (as shown by the gray square) while passing all terms; hence he completes the school stages in 12 Hijri years. Most students fall between these two boundaries (as shown by the diagonal squares).