| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 1 | no difficulty remembering/concentrating | 58892 |
95.9%
|
| 2 | some difficulty | 2033 |
3.3%
|
| 3 | a lot of difficulty | 340 |
0.6%
|
| 4 | cannot remember/concentrate at all | 80 |
0.1%
|
| 8 | don't know | 39 |
0.1%
|
| Sysmiss | 12412 |