| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | never heard of | 4356 |
25.5%
|
| 1 | used ors | 429 |
2.5%
|
| 2 | heard of ors | 12250 |
71.7%
|
| 9 | 52 |
0.3%
|