| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 3 |
1.6%
|
| 0 | 9 |
4.7%
|
|
| 2 | 1 |
0.5%
|
|
| 10 | 3 |
1.6%
|
|
| 14 | 1 |
0.5%
|
|
| 20 | 5 |
2.6%
|
|
| 25 | 2 |
1%
|
|
| 30 | 5 |
2.6%
|
|
| 35 | 1 |
0.5%
|
|
| 40 | 1 |
0.5%
|
|
| 50 | 20 |
10.4%
|
|
| 51 | 1 |
0.5%
|
|
| 60 | 2 |
1%
|
|
| 70 | 1 |
0.5%
|
|
| 75 | 5 |
2.6%
|
|
| 80 | 2 |
1%
|
|
| 95 | 1 |
0.5%
|
|
| 100 | 129 |
67.2%
|
|
| Sysmiss | 41 |