| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
0.6%
|
| 0 | 65 |
39.6%
|
|
| 1 | 35 |
21.3%
|
|
| 2 | 22 |
13.4%
|
|
| 3 | 17 |
10.4%
|
|
| 4 | 6 |
3.7%
|
|
| 5 | 10 |
6.1%
|
|
| 6 | 2 |
1.2%
|
|
| 10 | 3 |
1.8%
|
|
| 12 | 2 |
1.2%
|
|
| 30 | 1 |
0.6%
|
|
| Sysmiss | 190 |