| Value | Category |
|---|---|
| 1 | Poor + Permanent registration |
| 2 | Poor + Long-term temporary residents |
| 3 | Poor + Short-term temporary residents |
| 4 | Non-Poor + Permanent registration |
| 5 | Non-Poor + Long-term temporary residents |
| 6 | Non-Poor + Short-term temporary residents |
| 7 | Other |