| Value | Category | Cases | |
|---|---|---|---|
| -77 | Other | 2 |
0%
|
| 1 | Unimproved | 1183 |
12.3%
|
| 2 | Improved | 8420 |
87.7%
|
| a | Don't know | 0 | |
| m | Not administered in this wave | 0 | |
| z | Not applicable | 0 |