| Value |
Category |
| 1 |
1-4 hours |
| 2 |
5-8 hours |
| 3 |
9-12 hours |
| 4 |
More than 12 hours |
| 99 |
N/R |
| 888 |
Don't know |
| 999 |
N/A |
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.