| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 18 |
4.7%
|
| 0 | 69 |
17.9%
|
|
| 1 | 79 |
20.5%
|
|
| 2 | 69 |
17.9%
|
|
| 3 | 44 |
11.4%
|
|
| 4 | 15 |
3.9%
|
|
| 5 | 32 |
8.3%
|
|
| 6 | 10 |
2.6%
|
|
| 7 | 2 |
0.5%
|
|
| 8 | 2 |
0.5%
|
|
| 10 | 21 |
5.4%
|
|
| 12 | 4 |
1%
|
|
| 15 | 6 |
1.6%
|
|
| 20 | 7 |
1.8%
|
|
| 25 | 2 |
0.5%
|
|
| 30 | 3 |
0.8%
|
|
| 50 | 1 |
0.3%
|
|
| 60 | 2 |
0.5%
|
|
| Sysmiss | 700 |