| Value | Category |
|---|---|
| 0 | |
| 1 | No supply through PDS |
| 2 | In general regular supply on a daily basis |
| 3 | In general regular supply on a weekly basis |
| 4 | In general regular supply on a fortnightly basis |
| 5 | In general regular supply on a monthly basis |
| 6 | Erratic supply |
| 7 | |
| 8 | |
| 9 |