| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 9 |
15%
|
| 0 | 4 |
6.7%
|
|
| 5 | 2 |
3.3%
|
|
| 10 | 4 |
6.7%
|
|
| 20 | 1 |
1.7%
|
|
| 25 | 3 |
5%
|
|
| 35 | 2 |
3.3%
|
|
| 40 | 1 |
1.7%
|
|
| 45 | 1 |
1.7%
|
|
| 50 | 6 |
10%
|
|
| 55 | 1 |
1.7%
|
|
| 60 | 2 |
3.3%
|
|
| 70 | 6 |
10%
|
|
| 80 | 8 |
13.3%
|
|
| 90 | 3 |
5%
|
|
| 100 | 7 |
11.7%
|
|
| Sysmiss | 91 |