| Value | Category |
|---|---|
| -9 | Don't know |
| -8 | Refused |
| -5 | Not applicable |
| -3 | Missing |
| 1 | I have never drank alcohol |
| 2 | I no longer drink alcohol |
| 3 | I drink very rarely |
| 4 | Less than once a week |
| 5 | On 1 or 2 days a week |
| 6 | On 3 or 4 days a week |
| 7 | On 5 or 6 days a week |
| 8 | Every day |
| Sysmiss |