| Value | Category | Cases | |
|---|---|---|---|
| 0 | Measured | 788 |
91.2%
|
| 3 | Not present | 35 |
4.1%
|
| 4 | Refused | 40 |
4.6%
|
| 6 | Other | 1 |
0.1%
|
| Sysmiss | 5617 |