| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 13 |
2.4%
|
| 0 | 69 |
12.7%
|
|
| 1 | 88 |
16.2%
|
|
| 2 | 203 |
37.4%
|
|
| 3 | 60 |
11%
|
|
| 4 | 3 |
0.6%
|
|
| 5 | 39 |
7.2%
|
|
| 6 | 5 |
0.9%
|
|
| 7 | 2 |
0.4%
|
|
| 8 | 8 |
1.5%
|
|
| 9 | 3 |
0.6%
|
|
| 10 | 41 |
7.6%
|
|
| 13 | 2 |
0.4%
|
|
| 14 | 2 |
0.4%
|
|
| 15 | 5 |
0.9%
|
|
| Sysmiss | 72 |