| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 10073 |
93.2%
|
| 3 | not present | 296 |
2.7%
|
| 4 | refused | 429 |
4%
|
| 6 | other | 7 |
0.1%
|
| Sysmiss | 14625 |