| Value | Category | Cases | |
|---|---|---|---|
| 1 | measured | 253 |
95.1%
|
| 2 | not measured | 8 |
3%
|
| 3 | refused | 4 |
1.5%
|
| 6 | other | 1 |
0.4%
|
| Sysmiss | 15719 |