| Value | Category | Cases | |
|---|---|---|---|
| 1 | Les then15 minutes | 96 |
74.4%
|
| 2 | 15-30 minutes | 24 |
18.6%
|
| 3 | 31-60 minutes | 6 |
4.7%
|
| 4 | 1-2 hours | 1 |
0.8%
|
| 5 | More then 2 hours | 2 |
1.6%
|
| 11 | .B | 5 | |
| Sysmiss | 166 |