| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 16 |
16.2%
|
| 0 | 4 |
4%
|
|
| 10 | 2 |
2%
|
|
| 15 | 1 |
1%
|
|
| 20 | 3 |
3%
|
|
| 30 | 4 |
4%
|
|
| 35 | 1 |
1%
|
|
| 40 | 1 |
1%
|
|
| 50 | 5 |
5.1%
|
|
| 60 | 2 |
2%
|
|
| 70 | 2 |
2%
|
|
| 76 | 1 |
1%
|
|
| 80 | 5 |
5.1%
|
|
| 85 | 1 |
1%
|
|
| 90 | 1 |
1%
|
|
| 98 | 1 |
1%
|
|
| 100 | 49 |
49.5%
|
|
| Sysmiss | 261 |