26:00
0
students
08:00
0
06:00
0
10:00
3
05:00
1
06:00
4
05:00
0
26:00
0
09:00
0
13:00
0
05:00
1
05:00
0
05:00
2
21:00
5
05:00
2
05:00
3
42:00
3
01:40:00
2
06:00
5
06:00
9
16:00
1
05:00
1
27:00
0
12:00
10
26:00
1
12:00
8
07:00
0
11:00
3
14:00
0
10:00
1
19:00
0
