| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 6 |
75%
|
| 3 | not present | 1 |
12.5%
|
| 4 | refused | 1 |
12.5%
|
| 6 | other | 0 |
0%
|
| Sysmiss | 6473 |