| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 8 |
2.1%
|
| 0 | 36 |
9.4%
|
|
| 1 | 166 |
43.6%
|
|
| 2 | 80 |
21%
|
|
| 3 | 30 |
7.9%
|
|
| 4 | 12 |
3.1%
|
|
| 5 | 18 |
4.7%
|
|
| 6 | 2 |
0.5%
|
|
| 7 | 5 |
1.3%
|
|
| 8 | 7 |
1.8%
|
|
| 9 | 1 |
0.3%
|
|
| 10 | 6 |
1.6%
|
|
| 15 | 4 |
1%
|
|
| 20 | 4 |
1%
|
|
| 25 | 1 |
0.3%
|
|
| 50 | 1 |
0.3%
|
|
| Sysmiss | 585 |