| value | category | cases | |
|---|---|---|---|
| 0 | Measured | 406 |
87.9%
|
| 3 | Not present | 1 |
0.2%
|
| 4 | Refused | 52 |
11.3%
|
| 5 | 0 |
0%
|
|
| 6 | Other | 3 |
0.6%
|
| 9 | 40 | ||
| Sysmiss | 8595 |