| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not applicable | 510 |
6.2%
|
| 1 | One outlet | 5041 |
61.1%
|
| 2 | Two outlets | 259 |
3.1%
|
| 3 | Three or more outlets | 1620 |
19.6%
|
| 9 | Not known | 818 |
9.9%
|