| Value |
Category |
| 1 |
Less than 15 minutes |
| 2 |
15 to 30minutes |
| 3 |
30 to an hour |
| 4 |
From 1 to 3 hrs |
| 5 |
More than 3hrs |
| 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.