| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 28 |
13.1%
|
| 0 | 4 |
1.9%
|
|
| 1 | 70 |
32.9%
|
|
| 2 | 27 |
12.7%
|
|
| 3 | 18 |
8.5%
|
|
| 4 | 6 |
2.8%
|
|
| 5 | 36 |
16.9%
|
|
| 6 | 1 |
0.5%
|
|
| 7 | 2 |
0.9%
|
|
| 10 | 11 |
5.2%
|
|
| 15 | 1 |
0.5%
|
|
| 18 | 1 |
0.5%
|
|
| 20 | 4 |
1.9%
|
|
| 30 | 2 |
0.9%
|
|
| 40 | 1 |
0.5%
|
|
| 60 | 1 |
0.5%
|
|
| Sysmiss | 1026 |