| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 2 |
4.3%
|
| -1 | refuse | 5 |
10.6%
|
| 0 | 15 |
31.9%
|
|
| 1 | 3-1000 | 9 |
19.1%
|
| 2 | 1001-50000 | 16 |
34%
|
| Sysmiss | 1002 |