| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | No | 7439 |
71.5%
|
| 1 | Currently attending | 0 |
0%
|
| 2 | Attended at some time | 2953 |
28.4%
|
| 9 | 9 |
0.1%
|
|
| Sysmiss | 4023 |