| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
1.2%
|
| 0 | 33 |
12.7%
|
|
| 1 | 46 |
17.7%
|
|
| 2 | 61 |
23.5%
|
|
| 3 | 47 |
18.1%
|
|
| 4 | 21 |
8.1%
|
|
| 5 | 25 |
9.6%
|
|
| 6 | 15 |
5.8%
|
|
| 7 | 1 |
0.4%
|
|
| 8 | 1 |
0.4%
|
|
| 12 | 3 |
1.2%
|
|
| 24 | 1 |
0.4%
|
|
| 48 | 2 |
0.8%
|
|
| 120 | 1 |
0.4%
|
|
| Sysmiss | 332 |