| Value | Category |
|---|---|
| 1 | I did not smoke any cigarettes during the past 30 days |
| 2 | I bought them in a store or shop |
| 3 | I got them from someone younger than or the same age as me |
| 4 | I got them from someone older than me |
| 5 | I got them some other way |
| 6 | I stole them |
| Sysmiss |