| Value | Category | Cases | |
|---|---|---|---|
| 1 | Acceptable | 4889 |
19%
|
| 2 | Crack | 1472 |
5.7%
|
| 3 | Damp | 17976 |
69.7%
|
| 4 | Leakage | 1444 |
5.6%
|
| Sysmiss | 1660 |