| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
2.1%
|
| 0 | 33 |
22.9%
|
|
| 1 | 28 |
19.4%
|
|
| 2 | 26 |
18.1%
|
|
| 3 | 14 |
9.7%
|
|
| 4 | 7 |
4.9%
|
|
| 5 | 9 |
6.3%
|
|
| 7 | 2 |
1.4%
|
|
| 8 | 3 |
2.1%
|
|
| 10 | 8 |
5.6%
|
|
| 12 | 2 |
1.4%
|
|
| 13 | 1 |
0.7%
|
|
| 15 | 2 |
1.4%
|
|
| 25 | 1 |
0.7%
|
|
| 26 | 1 |
0.7%
|
|
| 43 | 1 |
0.7%
|
|
| 50 | 2 |
1.4%
|
|
| 56 | 1 |
0.7%
|
|
| Sysmiss | 468 |