| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 16 |
12.6%
|
| 2 | 36 |
28.3%
|
|
| 3 | 24 |
18.9%
|
|
| 4 | 13 |
10.2%
|
|
| 5 | 11 |
8.7%
|
|
| 6 | 2 |
1.6%
|
|
| 7 | 5 |
3.9%
|
|
| 8 | 3 |
2.4%
|
|
| 9 | 1 |
0.8%
|
|
| 10 | 2 |
1.6%
|
|
| 11 | 1 |
0.8%
|
|
| 13 | 2 |
1.6%
|
|
| 14 | 1 |
0.8%
|
|
| 15 | 2 |
1.6%
|
|
| 16 | 1 |
0.8%
|
|
| 20 | 1 |
0.8%
|
|
| 25 | 2 |
1.6%
|
|
| 41 | 1 |
0.8%
|
|
| 67 | 1 |
0.8%
|
|
| 186 | 1 |
0.8%
|
|
| 460 | 1 |
0.8%
|
|
| Sysmiss | 704 |