| Value | Category | Cases | |
|---|---|---|---|
| 1 | <1/2 heure | 60 |
6.8%
|
| 2 | 1/2 heure | 106 |
12.1%
|
| 3 | 1 heure | 201 |
22.9%
|
| 4 | > 1 heure | 510 |
58.2%
|
| Sysmiss | 2770 |