| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1%
|
| 1 | 2 |
2%
|
|
| 3 | 1 |
1%
|
|
| 5 | 2 |
2%
|
|
| 10 | 2 |
2%
|
|
| 11 | 1 |
1%
|
|
| 12 | 1 |
1%
|
|
| 15 | 2 |
2%
|
|
| 20 | 6 |
6.1%
|
|
| 24 | 1 |
1%
|
|
| 25 | 7 |
7.1%
|
|
| 30 | 9 |
9.1%
|
|
| 33 | 3 |
3%
|
|
| 35 | 2 |
2%
|
|
| 40 | 5 |
5.1%
|
|
| 50 | 17 |
17.2%
|
|
| 51 | 1 |
1%
|
|
| 55 | 1 |
1%
|
|
| 70 | 2 |
2%
|
|
| 75 | 1 |
1%
|
|
| 100 | 32 |
32.3%
|
|
| Sysmiss | 483 |