| Value | Category | Cases | |
|---|---|---|---|
| 1 | Beton | 1850 |
69.1%
|
| 2 | T | 309 |
11.5%
|
| 3 | Tuiles | 414 |
15.5%
|
| 4 | Terre battue | 14 |
0.5%
|
| 5 | Chaume/paille | 4 |
0.1%
|
| 6 | 27 |
1%
|
|
| 7 | Autre | 56 |
2.1%
|
| 99 | 3 |
0.1%
|
|
| Sysmiss | 10 |