| Valeur | Modalité | Cas | |
|---|---|---|---|
| 3 | By phone | 1 |
0%
|
| 4 | By mail | 78 |
1.1%
|
| 5 | By internet | 96 |
1.3%
|
| 6 | By other means (tapes, sms...) | 4 |
0.1%
|
| Sysmiss | 6956 |