| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
3.3%
|
| -8 | Refusal (spontaneous) | 0 |
0%
|
| 3 | 1 |
0.6%
|
|
| 6 | 5 |
2.8%
|
|
| 9 | 2 |
1.1%
|
|
| 10 | 2 |
1.1%
|
|
| 12 | 41 |
22.7%
|
|
| 18 | 1 |
0.6%
|
|
| 20 | 1 |
0.6%
|
|
| 24 | 17 |
9.4%
|
|
| 36 | 21 |
11.6%
|
|
| 48 | 7 |
3.9%
|
|
| 60 | 23 |
12.7%
|
|
| 72 | 4 |
2.2%
|
|
| 84 | 11 |
6.1%
|
|
| 90 | 1 |
0.6%
|
|
| 96 | 2 |
1.1%
|
|
| 120 | 25 |
13.8%
|
|
| 132 | 2 |
1.1%
|
|
| 144 | 3 |
1.7%
|
|
| 156 | 1 |
0.6%
|
|
| 168 | 1 |
0.6%
|
|
| 180 | 2 |
1.1%
|
|
| 192 | 1 |
0.6%
|
|
| 360 | 1 |
0.6%
|
|
| Sysmiss | 223 |