| Value | Category |
|---|---|
| 1 | I have not smoked any cigarettes during the past 30 days |
| 2 | I bought them in a shop or store |
| 3 | I bought them from a street seller |
| 4 | I bought them from a kiosk |
| 5 | I bought them from a vending machine |
| 6 | I obtained them from someone else |
| 7 | I obtained them in some other way |
| Sysmiss |