| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 0 |
0%
|
| 0 | 32 |
19.4%
|
|
| 10 | 7 |
4.2%
|
|
| 15 | 2 |
1.2%
|
|
| 20 | 10 |
6.1%
|
|
| 25 | 1 |
0.6%
|
|
| 30 | 6 |
3.6%
|
|
| 37 | 1 |
0.6%
|
|
| 40 | 5 |
3%
|
|
| 45 | 1 |
0.6%
|
|
| 50 | 17 |
10.3%
|
|
| 51 | 1 |
0.6%
|
|
| 60 | 2 |
1.2%
|
|
| 70 | 1 |
0.6%
|
|
| 75 | 1 |
0.6%
|
|
| 80 | 3 |
1.8%
|
|
| 90 | 4 |
2.4%
|
|
| 100 | 71 |
43%
|
|
| Sysmiss | 188 |