| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 7 |
8.2%
|
| 10 | 1 |
1.2%
|
|
| 20 | 2 |
2.4%
|
|
| 25 | 1 |
1.2%
|
|
| 30 | 1 |
1.2%
|
|
| 40 | 3 |
3.5%
|
|
| 45 | 1 |
1.2%
|
|
| 50 | 6 |
7.1%
|
|
| 60 | 14 |
16.5%
|
|
| 65 | 2 |
2.4%
|
|
| 70 | 12 |
14.1%
|
|
| 74 | 1 |
1.2%
|
|
| 75 | 3 |
3.5%
|
|
| 80 | 12 |
14.1%
|
|
| 85 | 2 |
2.4%
|
|
| 90 | 4 |
4.7%
|
|
| 95 | 2 |
2.4%
|
|
| 100 | 11 |
12.9%
|
|
| Sysmiss | 275 |