| Value | Category | Cases | |
|---|---|---|---|
| 0 | measured | 3281 |
96.9%
|
| 3 | not present | 51 |
1.5%
|
| 4 | refused | 33 |
1%
|
| 6 | other | 5 |
0.1%
|
| 9 | 16 |
0.5%
|
|
| 11 | .Z | 12281 |