| Value | Category | Cases | |
|---|---|---|---|
| 1 | Acceptable | 375 |
28.9%
|
| 2 | Crack | 85 |
6.5%
|
| 3 | Damp | 764 |
58.9%
|
| 4 | Leakage | 74 |
5.7%
|
| Sysmiss | 85 |