| Value | Category | Cases | |
|---|---|---|---|
| -77 | Other | 0 | |
| 1 | Unimproved | 10700 |
58.6%
|
| 2 | Improved | 7564 |
41.4%
|
| a | Don't know | 0 | |
| m | Not administered in this wave | 0 | |
| z | Not applicable | 0 |