| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 4 |
4.8%
|
| 0 | 34 |
41%
|
|
| 1 | 14 |
16.9%
|
|
| 2 | 4 |
4.8%
|
|
| 3 | 3 |
3.6%
|
|
| 4 | 3 |
3.6%
|
|
| 5 | 3 |
3.6%
|
|
| 6 | 3 |
3.6%
|
|
| 7 | 3 |
3.6%
|
|
| 8 | 2 |
2.4%
|
|
| 10 | 1 |
1.2%
|
|
| 12 | 1 |
1.2%
|
|
| 17 | 2 |
2.4%
|
|
| 19 | 1 |
1.2%
|
|
| 21 | 1 |
1.2%
|
|
| 30 | 2 |
2.4%
|
|
| 60 | 1 |
1.2%
|
|
| 70 | 1 |
1.2%
|
|
| Sysmiss | 159 |