| Value | Category | Cases | |
|---|---|---|---|
| 1 | Permanent formal structure | 14464 |
64.6%
|
| 2 | Permanent informal structure | 4199 |
18.8%
|
| 3 | Traditional structure | 3166 |
14.1%
|
| 4 | Temporary structure | 558 |
2.5%
|
| Sysmiss | 59 |