| Value |
Category |
| 1 |
less than 15 minutes |
| 2 |
15-30 mins |
| 3 |
30-60 mins |
| 4 |
1-2 hours |
| 5 |
over 2 hours |
| 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.