| Value | Category | Cases | |
|---|---|---|---|
| 1 | Pillar bonded | 1241 |
28.7%
|
| 2 | Cement bonded | 606 |
14%
|
| 3 | Mod bonded | 1566 |
36.3%
|
| 4 | Wooden pillar | 790 |
18.3%
|
| 5 | Other | 117 |
2.7%
|