| Value | Category | Cases | |
|---|---|---|---|
| 1 | <10 minutes | 20 |
15.3%
|
| 2 | 11-30 minutes | 43 |
32.8%
|
| 3 | 31-60 minutes | 31 |
23.7%
|
| 4 | 61-120 minutes | 12 |
9.2%
|
| 5 | 120+ minutes | 25 |
19.1%
|
| Sysmiss | 177 |