| Value | Category |
|---|---|
| 1 | I haven't smoked cigarettes in the last 30 days |
| 2 | I bought them from a big store / supermarket or a small store |
| 3 | I bought them from a pub/restaurant |
| 4 | I bought them from a pavilion/kiosk |
| 5 | I bought them from a vending machine |
| 6 | I got them from someone else |
| 7 | I got them in some other way |
| Sysmiss |