| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
13.3%
|
| 2 | 6 |
10%
|
|
| 3 | 11 |
18.3%
|
|
| 4 | 9 |
15%
|
|
| 5 | 5 |
8.3%
|
|
| 6 | 3 |
5%
|
|
| 7 | 1 |
1.7%
|
|
| 8 | 1 |
1.7%
|
|
| 9 | 1 |
1.7%
|
|
| 10 | 1 |
1.7%
|
|
| 12 | 1 |
1.7%
|
|
| 13 | 2 |
3.3%
|
|
| 15 | 1 |
1.7%
|
|
| 16 | 1 |
1.7%
|
|
| 18 | 1 |
1.7%
|
|
| 20 | 1 |
1.7%
|
|
| 22 | 1 |
1.7%
|
|
| 34 | 1 |
1.7%
|
|
| 37 | 1 |
1.7%
|
|
| 50 | 1 |
1.7%
|
|
| 60 | 1 |
1.7%
|
|
| 80 | 1 |
1.7%
|
|
| 250 | 1 |
1.7%
|
|
| Sysmiss | 1263 |