| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 1074 |
97.3%
|
| 3 | not present | 23 |
2.1%
|
| 4 | refused | 4 |
0.4%
|
| 6 | other | 3 |
0.3%
|
| Sysmiss | 5288 |