| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 6 |
2.7%
|
|
| 1 | 30 |
13.4%
|
|
| 2 | 44 |
19.6%
|
|
| 3 | 42 |
18.8%
|
|
| 4 | 38 |
17%
|
|
| 5 | 20 |
8.9%
|
|
| 6 | 21 |
9.4%
|
|
| 7 | 4 |
1.8%
|
|
| 8 | 4 |
1.8%
|
|
| 10 | 7 |
3.1%
|
|
| 12 | 1 |
0.4%
|
|
| 15 | 1 |
0.4%
|
|
| 20 | 2 |
0.9%
|
|
| 25 | 1 |
0.4%
|
|
| 30 | 1 |
0.4%
|
|
| 40 | 1 |
0.4%
|
|
| 90 | 1 |
0.4%
|
|
| Sysmiss | 134 |