Policy Value Dictionary:
| 0 | No availability |
| 1 | Availability for ONE of following: key workers/ clinically vulnerable groups / elderly groups |
| 2 | Availability for TWO of following: key workers/ clinically vulnerable groups / elderly groups |
| 3 | Availability for ALL of following: key workers/ clinically vulnerable groups / elderly groups |
| 4 | Availability for all three plus partial additional availability (select broad groups/ages) |
| 5 | Universal availability |