Students: each student is counted once, on the date of their first join to a group, and stays counted in that period even if they leave later. Current students are those enrolled in active groups now.
Plans: recitation plans assigned to students during the period.
Attendance records: the daily attendance entries in all four states: attended, late, excused, absent.
Assignments: recitations recorded during the period, with their average rating out of 5.
Pages, ayahs, words and letters: the Quran recited in the assignments, counted by the mushaf; a complete reading is 604 pages and a juz is 20 pages.
Daily activity: the number of students with an attendance record or an assignment on that day.