| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 28 |
13.2%
|
| 2 | 1 |
0.5%
|
|
| 3 | 1 |
0.5%
|
|
| 4 | 2 |
0.9%
|
|
| 5 | 15 |
7.1%
|
|
| 7 | 3 |
1.4%
|
|
| 8 | 3 |
1.4%
|
|
| 10 | 56 |
26.4%
|
|
| 12 | 1 |
0.5%
|
|
| 15 | 18 |
8.5%
|
|
| 20 | 54 |
25.5%
|
|
| 25 | 1 |
0.5%
|
|
| 30 | 17 |
8%
|
|
| 35 | 1 |
0.5%
|
|
| 50 | 5 |
2.4%
|
|
| 60 | 1 |
0.5%
|
|
| 100 | 2 |
0.9%
|
|
| 300 | 3 |
1.4%
|
|
| Sysmiss | 59 |