| Value |
Category |
| 1 |
less than 5 minutes |
| 2 |
5-15 minutes |
| 3 |
15-30 minutes |
| 4 |
30-60 minutes |
| 5 |
1-2 hours |
| 6 |
More than 2 hours |
| 7 |
Difficult to answer |
| Sysmiss |
|
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.