| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 32 |
18.1%
|
| 0 | 41 |
23.2%
|
|
| 1 | 16 |
9%
|
|
| 2 | 15 |
8.5%
|
|
| 3 | 17 |
9.6%
|
|
| 4 | 3 |
1.7%
|
|
| 5 | 11 |
6.2%
|
|
| 6 | 2 |
1.1%
|
|
| 7 | 3 |
1.7%
|
|
| 8 | 2 |
1.1%
|
|
| 10 | 6 |
3.4%
|
|
| 11 | 1 |
0.6%
|
|
| 12 | 1 |
0.6%
|
|
| 15 | 1 |
0.6%
|
|
| 17 | 1 |
0.6%
|
|
| 20 | 4 |
2.3%
|
|
| 22 | 1 |
0.6%
|
|
| 23 | 2 |
1.1%
|
|
| 25 | 1 |
0.6%
|
|
| 26 | 1 |
0.6%
|
|
| 29 | 1 |
0.6%
|
|
| 30 | 1 |
0.6%
|
|
| 35 | 1 |
0.6%
|
|
| 40 | 1 |
0.6%
|
|
| 45 | 1 |
0.6%
|
|
| 46 | 1 |
0.6%
|
|
| 50 | 3 |
1.7%
|
|
| 54 | 1 |
0.6%
|
|
| 60 | 1 |
0.6%
|
|
| 140 | 1 |
0.6%
|
|
| 230 | 1 |
0.6%
|
|
| 270 | 1 |
0.6%
|
|
| 379 | 1 |
0.6%
|
|
| 395 | 1 |
0.6%
|
|
| Sysmiss | 232 |