14:00
0
students
05:00
0
08:00
4
04:00
1
05:00
4
00:31
0
06:00
2
13:00
107
27:00
7
05:00
0
10:00
9
05:00
42
07:00
69
08:00
23
12:00
0
07:00 10
05:00
17
06:00
191
02:00 147
06:00 9
12:00
5
06:00 4
05:00
10
07:00 5
07:00
9
00:10
841