| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 0 |
0%
|
| -1 | refuse | 1 |
2.8%
|
| 0 | 24 |
66.7%
|
|
| 1 | 1-15 | 5 |
13.9%
|
| 2 | 16-1000 | 6 |
16.7%
|
| Sysmiss | 1013 |