| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | no | 11109 |
97.8%
|
| 1 | yes, once | 126 |
1.1%
|
| 2 | yes, more than once | 103 |
0.9%
|
| 9 | 25 |
0.2%
|
|
| Sysmiss | 5724 |