| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 1886 |
99.5%
|
| 3 | not present | 3 |
0.2%
|
| 4 | refused | 6 |
0.3%
|
| 6 | other | 1 |
0.1%
|
| Sysmiss | 11053 |