| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know | 1 |
3.4%
|
| 2 | 2 |
6.9%
|
|
| 5 | 1 |
3.4%
|
|
| 7 | 1 |
3.4%
|
|
| 9 | 1 |
3.4%
|
|
| 15 | 1 |
3.4%
|
|
| 30 | 1 |
3.4%
|
|
| 50 | 2 |
6.9%
|
|
| 60 | 2 |
6.9%
|
|
| 70 | 1 |
3.4%
|
|
| 100 | 16 |
55.2%
|
|
| Sysmiss | 1403 |