| Value | Category | Cases | |
|---|---|---|---|
| 1 | Very weak | 735 |
3.5%
|
| 2 | Weak | 1501 |
7.2%
|
| 3 | Needs minor repairs | 4211 |
20.1%
|
| 4 | Good | 11343 |
54.3%
|
| 5 | Very good | 2952 |
14.1%
|
| 9 | Unspecified | 166 |
0.8%
|