| Value | Category | Cases | |
|---|---|---|---|
| -9 | do not know | 26 |
47.3%
|
| 0 | none | 14 |
25.5%
|
| 1 | 5 |
9.1%
|
|
| 2 | 1 |
1.8%
|
|
| 3 | 3 |
5.5%
|
|
| 5 | 2 |
3.6%
|
|
| 10 | 1 |
1.8%
|
|
| 15 | 2 |
3.6%
|
|
| 20 | 1 |
1.8%
|
|
| Sysmiss | 93 |