| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 14 |
6.9%
|
| 0 | 36 |
17.6%
|
|
| 1 | 1 |
0.5%
|
|
| 4 | 1 |
0.5%
|
|
| 5 | 1 |
0.5%
|
|
| 10 | 4 |
2%
|
|
| 15 | 2 |
1%
|
|
| 20 | 15 |
7.4%
|
|
| 30 | 9 |
4.4%
|
|
| 35 | 1 |
0.5%
|
|
| 40 | 2 |
1%
|
|
| 50 | 9 |
4.4%
|
|
| 55 | 1 |
0.5%
|
|
| 60 | 7 |
3.4%
|
|
| 70 | 4 |
2%
|
|
| 75 | 2 |
1%
|
|
| 80 | 8 |
3.9%
|
|
| 87 | 1 |
0.5%
|
|
| 88 | 1 |
0.5%
|
|
| 90 | 4 |
2%
|
|
| 92 | 1 |
0.5%
|
|
| 95 | 1 |
0.5%
|
|
| 100 | 79 |
38.7%
|
|
| Sysmiss | 157 |