| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 2 |
2.3%
|
| 0 | 20 |
23.3%
|
|
| 1 | 10 |
11.6%
|
|
| 2 | 10 |
11.6%
|
|
| 3 | 6 |
7%
|
|
| 4 | 5 |
5.8%
|
|
| 5 | 7 |
8.1%
|
|
| 6 | 3 |
3.5%
|
|
| 7 | 2 |
2.3%
|
|
| 8 | 3 |
3.5%
|
|
| 9 | 2 |
2.3%
|
|
| 10 | 1 |
1.2%
|
|
| 12 | 3 |
3.5%
|
|
| 13 | 1 |
1.2%
|
|
| 15 | 6 |
7%
|
|
| 20 | 1 |
1.2%
|
|
| 29 | 1 |
1.2%
|
|
| 39 | 1 |
1.2%
|
|
| 40 | 1 |
1.2%
|
|
| 65 | 1 |
1.2%
|
|
| Sysmiss | 76 |