| Value | Category | Cases | |
|---|---|---|---|
| -77 | Other | 9 |
0.1%
|
| 1 | Unimproved | 1097 |
11.4%
|
| 2 | Improved | 8498 |
88.5%
|
| a | Don't know | 0 | |
| m | Not administered in this wave | 0 | |
| z | Not applicable | 0 |