| Value | Category | Cases | |
|---|---|---|---|
| 1 | 15-30 minutes | 424 |
22.2%
|
| 2 | 30-45 minutes | 133 |
7%
|
| 3 | 45-60 minutes | 71 |
3.7%
|
| 4 | Don't know | 55 |
2.9%
|
| 5 | Less than 15 minutes | 1174 |
61.6%
|
| 6 | More than one hour | 49 |
2.6%
|
| Sysmiss | 593 |