| Value | Category | Cases | |
|---|---|---|---|
| 0 | Measured | 10052 |
93.3%
|
| 3 | Not present | 280 |
2.6%
|
| 4 | Refused | 424 |
3.9%
|
| 6 | Other | 20 |
0.2%
|
| 9 | 25 | ||
| Sysmiss | 14629 |