| Value | Category | Cases | |
|---|---|---|---|
| 0 | Measured | 13 |
92.9%
|
| 3 | Not present | 0 |
0%
|
| 4 | Refused | 1 |
7.1%
|
| 6 | Other | 0 |
0%
|
| Sysmiss | 6467 |