| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 70 |
89.7%
|
| 3 | not present | 0 |
0%
|
| 4 | refused | 0 |
0%
|
| 5 | 0 |
0%
|
|
| 6 | other | 0 |
0%
|
| 9 | 8 |
10.3%
|
|
| Sysmiss | 831 |