| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1%
|
| 1 | 5 |
4.9%
|
|
| 2 | 28 |
27.5%
|
|
| 3 | 11 |
10.8%
|
|
| 4 | 11 |
10.8%
|
|
| 5 | 3 |
2.9%
|
|
| 6 | 7 |
6.9%
|
|
| 8 | 6 |
5.9%
|
|
| 9 | 1 |
1%
|
|
| 10 | 1 |
1%
|
|
| 12 | 19 |
18.6%
|
|
| 13 | 1 |
1%
|
|
| 15 | 2 |
2%
|
|
| 20 | 1 |
1%
|
|
| 25 | 1 |
1%
|
|
| 36 | 1 |
1%
|
|
| 48 | 2 |
2%
|
|
| 84 | 1 |
1%
|
|
| Sysmiss | 55 |