| Value | Category | Cases | |
|---|---|---|---|
| 1 | Informant busy | 784 |
30.8%
|
| 2 | Members away from home | 1202 |
47.2%
|
| 3 | Informant non co-operative | 340 |
13.4%
|
| 8 | Invalid | 61 |
2.4%
|
| 9 | Others | 159 |
6.2%
|