| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 7 |
6.1%
|
|
| 1 | 8 |
7%
|
|
| 2 | 8 |
7%
|
|
| 3 | 19 |
16.7%
|
|
| 4 | 22 |
19.3%
|
|
| 5 | 13 |
11.4%
|
|
| 6 | 7 |
6.1%
|
|
| 7 | 4 |
3.5%
|
|
| 8 | 9 |
7.9%
|
|
| 10 | 4 |
3.5%
|
|
| 11 | 2 |
1.8%
|
|
| 12 | 1 |
0.9%
|
|
| 13 | 1 |
0.9%
|
|
| 14 | 3 |
2.6%
|
|
| 15 | 3 |
2.6%
|
|
| 25 | 1 |
0.9%
|
|
| 60 | 2 |
1.8%
|
|
| Sysmiss | 36 |