| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 3699 |
99.8%
|
| 3 | not present/other | 3 |
0.1%
|
| 4 | refused | 6 |
0.2%
|
| 6 | other | 0 |
0%
|
| Sysmiss | 52212 |