3.31e Did any of the interruptions last for more than 12 hours? If yes, how many of them?
Categories
Value
Category
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
24
88
Not applicable
99
Unspecified
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.