| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 28 |
10.1%
|
| 0 | 56 |
20.2%
|
|
| 1 | 106 |
38.3%
|
|
| 2 | 25 |
9%
|
|
| 3 | 12 |
4.3%
|
|
| 4 | 12 |
4.3%
|
|
| 5 | 19 |
6.9%
|
|
| 6 | 2 |
0.7%
|
|
| 7 | 1 |
0.4%
|
|
| 8 | 2 |
0.7%
|
|
| 10 | 7 |
2.5%
|
|
| 15 | 1 |
0.4%
|
|
| 18 | 1 |
0.4%
|
|
| 30 | 2 |
0.7%
|
|
| 60 | 2 |
0.7%
|
|
| 200 | 1 |
0.4%
|
|
| Sysmiss | 678 |