| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 6508 |
94.9%
|
| 3 | not present | 48 |
0.7%
|
| 4 | refused | 196 |
2.9%
|
| 5 | 0 |
0%
|
|
| 6 | other | 1 |
0%
|
| 9 | 104 |
1.5%
|
|
| 11 | .Z | 8810 |