| Value | Category | Cases | |
|---|---|---|---|
| -77 | Other | 10 |
0.1%
|
| 1 | Unimproved | 4978 |
51.8%
|
| 2 | Improved | 4616 |
48.1%
|
| a | Don't know | 0 | |
| m | Not administered in this wave | 0 | |
| z | Not applicable | 0 |