| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 2 | 3 |
5.1%
|
|
| 3 | 1 |
1.7%
|
|
| 10 | 4 |
6.8%
|
|
| 15 | 1 |
1.7%
|
|
| 20 | 10 |
16.9%
|
|
| 25 | 7 |
11.9%
|
|
| 30 | 8 |
13.6%
|
|
| 34 | 1 |
1.7%
|
|
| 35 | 1 |
1.7%
|
|
| 40 | 2 |
3.4%
|
|
| 45 | 1 |
1.7%
|
|
| 50 | 6 |
10.2%
|
|
| 56 | 1 |
1.7%
|
|
| 60 | 3 |
5.1%
|
|
| 90 | 2 |
3.4%
|
|
| 95 | 1 |
1.7%
|
|
| 100 | 7 |
11.9%
|
|
| Sysmiss | 98 |