| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 11 |
8.5%
|
| -1 | refuse | 11 |
8.5%
|
| 0 | 44 |
34.1%
|
|
| 1 | 8-1000 | 28 |
21.7%
|
| 2 | 1001-10000 | 27 |
20.9%
|
| 3 | 10001-70000 | 8 |
6.2%
|
| Sysmiss | 920 |