| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| -7 | Does not apply | 0 |
0%
|
| 1 | 2 |
1.3%
|
|
| 2 | 1 |
0.7%
|
|
| 4 | 4 |
2.6%
|
|
| 5 | 2 |
1.3%
|
|
| 6 | 1 |
0.7%
|
|
| 10 | 1 |
0.7%
|
|
| 12 | 1 |
0.7%
|
|
| 15 | 1 |
0.7%
|
|
| 20 | 1 |
0.7%
|
|
| NA | 137 |
90.7%
|