| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 9 |
29%
|
| -1 | refuse | 1 |
3.2%
|
| 0 | 5 |
16.1%
|
|
| 10 | 2 |
6.5%
|
|
| 15 | 1 |
3.2%
|
|
| 20 | 1 |
3.2%
|
|
| 30 | 1 |
3.2%
|
|
| 35 | 1 |
3.2%
|
|
| 40 | 2 |
6.5%
|
|
| 42 | 1 |
3.2%
|
|
| 50 | 1 |
3.2%
|
|
| 300 | 2 |
6.5%
|
|
| 350 | 1 |
3.2%
|
|
| 500 | 1 |
3.2%
|
|
| 600 | 1 |
3.2%
|
|
| 3500 | 1 |
3.2%
|
|
| Sysmiss | 1018 |