| Value | Category | Cases | |
|---|---|---|---|
| -2 | don't know | 4 |
3.1%
|
| -1 | refuse | 8 |
6.2%
|
| 0 | 10 |
7.8%
|
|
| 1 | 0.8-1000 | 93 |
72.1%
|
| 2 | 1001-3200000 | 14 |
10.9%
|
| 3200000 | extreme value | 0 |
0%
|
| Sysmiss | 920 |