| Valeur | Catégorie | le cas | |
|---|---|---|---|
| 0 | received no injection | 965 |
9.3%
|
| 1 | 1997 |
19.3%
|
|
| 2 | 6374 |
61.5%
|
|
| 3 | 896 |
8.6%
|
|
| 4 | 75 |
0.7%
|
|
| 5 | 30 |
0.3%
|
|
| 6 | 2 |
0%
|
|
| 7 | 7+ | 0 |
0%
|
| 8 | don't know | 10 |
0.1%
|
| 9 | 15 |
0.1%
|
|
| Sysmiss | 6723 |