| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 1795 |
94.1%
|
| 3 | not present | 41 |
2.1%
|
| 4 | refused | 71 |
3.7%
|
| 6 | other | 0 |
0%
|
| Sysmiss | 4574 |