| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 5 |
5%
|
| 0 | 1 |
1%
|
|
| 5 | 1 |
1%
|
|
| 8 | 1 |
1%
|
|
| 10 | 2 |
2%
|
|
| 20 | 2 |
2%
|
|
| 30 | 4 |
4%
|
|
| 40 | 3 |
3%
|
|
| 50 | 9 |
8.9%
|
|
| 60 | 4 |
4%
|
|
| 70 | 1 |
1%
|
|
| 79 | 1 |
1%
|
|
| 80 | 13 |
12.9%
|
|
| 85 | 1 |
1%
|
|
| 88 | 1 |
1%
|
|
| 90 | 8 |
7.9%
|
|
| 95 | 3 |
3%
|
|
| 98 | 1 |
1%
|
|
| 100 | 40 |
39.6%
|
|
| Sysmiss | 139 |