| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 293 |
96.1%
|
| 3 | not present | 8 |
2.6%
|
| 4 | refused | 3 |
1%
|
| 6 | other | 1 |
0.3%
|
| Sysmiss | 6087 |