| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 3 |
33.3%
|
| -1 | refuse | 0 |
0%
|
| 40 | 1 |
11.1%
|
|
| 150 | 1 |
11.1%
|
|
| 200 | 1 |
11.1%
|
|
| 300 | 1 |
11.1%
|
|
| 350 | 1 |
11.1%
|
|
| 600 | 1 |
11.1%
|
|
| Sysmiss | 1040 |