| Value | Category | Cases | |
|---|---|---|---|
| 1 | Les then15 minutes | 39 |
61.9%
|
| 2 | 15-30 minutes | 12 |
19%
|
| 3 | 31-60 minutes | 10 |
15.9%
|
| 4 | 1-2 hours | 1 |
1.6%
|
| 5 | More then 2 hours | 1 |
1.6%
|
| 11 | .B | 7 | |
| Sysmiss | 29 |