| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 160 |
95.8%
|
| 3 | not present | 2 |
1.2%
|
| 4 | refused | 2 |
1.2%
|
| 6 | other | 0 |
0%
|
| 9 | 3 |
1.8%
|
|
| Sysmiss | 742 |