| Value | Category | Cases | |
|---|---|---|---|
| 1 | measured | 3799 |
97.2%
|
| 2 | not measured | 98 |
2.5%
|
| 3 | refused | 8 |
0.2%
|
| 6 | other | 4 |
0.1%
|
| Sysmiss | 12076 |