| Value | Category | Cases | |
|---|---|---|---|
| 0 | 20 |
0.7%
|
|
| 1 | no | 2232 |
76.9%
|
| 2 | chamber of commerce | 473 |
16.3%
|
| 3 | specialised federation of industries | 114 |
3.9%
|
| 4 | geographical federation | 63 |
2.2%
|
| Sysmiss | 46 |