| Value | Category | Cases | |
|---|---|---|---|
| 0 | Measured | 2996 |
99.6%
|
| 3 | Not present | 4 |
0.1%
|
| 4 | Refused | 7 |
0.2%
|
| 6 | Other | 1 |
0%
|
| 9 | 17 | ||
| Sysmiss | 11046 |