| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 4 |
5.4%
|
| -1 | refuse | 7 |
9.5%
|
| 0 | 20 |
27%
|
|
| 1 | 1-1000 | 14 |
18.9%
|
| 2 | 1001-10000 | 20 |
27%
|
| 3 | 10001-60000 | 9 |
12.2%
|
| Sysmiss | 975 |