| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 6 |
3.8%
|
| 0 | 35 |
22.4%
|
|
| 1 | 10 |
6.4%
|
|
| 2 | 43 |
27.6%
|
|
| 3 | 24 |
15.4%
|
|
| 4 | 16 |
10.3%
|
|
| 5 | 7 |
4.5%
|
|
| 6 | 3 |
1.9%
|
|
| 7 | 1 |
0.6%
|
|
| 8 | 5 |
3.2%
|
|
| 12 | 1 |
0.6%
|
|
| 15 | 1 |
0.6%
|
|
| 24 | 1 |
0.6%
|
|
| 30 | 1 |
0.6%
|
|
| 35 | 1 |
0.6%
|
|
| 48 | 1 |
0.6%
|
|
| Sysmiss | 219 |