| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1 |
0.1%
|
|
| 1 | yes | 87 |
5.5%
|
| 2 | no | 202 |
12.8%
|
| 9 | under 7 years | 1283 |
81.6%
|
| Sysmiss | 79 |