| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 5225 |
99.7%
|
| 3 | not present | 2 |
0%
|
| 4 | refused | 12 |
0.2%
|
| 6 | other | 1 |
0%
|
| Sysmiss | 7709 |