| Value | Category | Cases | |
|---|---|---|---|
| 1 | Public sewage system | 13562 |
52.3%
|
| 2 | Hole/ground absorbency | 12377 |
47.7%
|
| 3 | N/A or none found | 14 |
0.1%
|
| 97 | Other (specify) | 0 |
0%
|
| 98 | Don't know | 0 |
0%
|
| Sysmiss | 39701 |