| Value | Category | Cases | |
|---|---|---|---|
| 1 | no windows/no covering window | 2128 |
29.6%
|
| 2 | shutters | 3565 |
49.7%
|
| 3 | screens/glass | 1376 |
19.2%
|
| 4 | other | 111 |
1.5%
|