| Value | Category | Cases | |
|---|---|---|---|
| 4 | Hot and cold water pipe | 7668 |
50.7%
|
| 5 | Cold water pipe | 817 |
5.4%
|
| 6 | Public inside of house | 77 |
0.5%
|
| 7 | Outside of house | 6569 |
43.4%
|
| Sysmiss | 27652 |