| Value | Category | Cases | |
|---|---|---|---|
| 1 | purchased | 7301 |
64.4%
|
| 2 | assistance from govemment | 1930 |
17%
|
| 3 | assistance from non-government organisation | 732 |
6.5%
|
| 7 | invalid | 1 |
0%
|
| 9 | others | 1369 |
12.1%
|