| Value | Category | Cases | |
|---|---|---|---|
| 0 | NA | 51087 |
42.8%
|
| 1 | conduit wiring | 11118 |
9.3%
|
| 2 | fixed to the walls | 45081 |
37.8%
|
| 3 | Temporary | 12108 |
10.1%
|
| 9 | Invalid | 3 |
0%
|