7
10:34
fluorescent lighting
7
10:34
20
10:03
8
17:07
13
3:51
18
12:05
8
10:20
9
3:14
9
3:35
11
4:35
8
19:16
9
13:02
7
12:12
11
22:13
9
2:47
23
6:32
9
1:07
9
7:53
8
5:35
11
6:18
12
3:00
8
19:34
8
1:14
9
2:40
11
7:10
8
2:05
10
4:51
8
32:31
10
4:23
12
21:22
13
5:50
9
4:50
8
9:09
8
3:24
9
8:40
15
5:25
8
8:38
11
5:54
11
3:13
9
11:31
10
6:31
9
14:15
10
3:13
8
3:01
10
13:45
10
4:50
8
0:50
8
7:09
6
4:39
10
3:25
10
5:00