Rail
Health
Royal Mail
Schools (Scotland)
Ambulance workers
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
20
19
21
22
23
24
25
26
27
28
29
30
31
January 2023
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Schools (Scotland)
Rail
Health
Royal Mail
Ambulance workers
December
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
January 2023
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15