| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1.2%
|
| 0 | 3 |
3.6%
|
|
| 20 | 6 |
7.2%
|
|
| 30 | 2 |
2.4%
|
|
| 35 | 1 |
1.2%
|
|
| 50 | 3 |
3.6%
|
|
| 60 | 10 |
12%
|
|
| 65 | 1 |
1.2%
|
|
| 68 | 1 |
1.2%
|
|
| 70 | 8 |
9.6%
|
|
| 75 | 2 |
2.4%
|
|
| 80 | 16 |
19.3%
|
|
| 81 | 1 |
1.2%
|
|
| 90 | 4 |
4.8%
|
|
| 100 | 24 |
28.9%
|
|
| Sysmiss | 74 |