Tolong jelaskan mengenai Daftar lagu dari 20 (Twenty)

The sales figure of 41,500 copies is taken from accumulating the sales of the single during its first four charting weeks on the Oricon weekly chart (33,418, 3,106, 3,060, 1,954).

The sales figure of 44,500 copies is taken from accumulating the sales of the single during its first three charting weeks on the Oricon weekly chart (39,120, 3,377, 2,055).

The sales figure of 30,500 copies is taken from accumulating the sales of the single during its first two charting weeks on the Oricon weekly chart (28,219, 2,315).

The sales figure of 44,603 copies is taken from accumulating the sales of the single during its first two charting weeks on the Oricon weekly chart (41,726, 2,877).