| Value | Category | Cases | |
|---|---|---|---|
| 1 | brick and stone | 11519 |
70.7%
|
| 2 | reinforced concrete | 4658 |
28.6%
|
| 3 | stone and mud | 100 |
0.6%
|
| 4 | wood & zinc | 7 |
0%
|
| 97 | Other | 3 |
0%
|
| Sysmiss | 143 |