| Value | Category |
|---|---|
| 1 | I did not smoke or use any tobacco during the past 30 days (one month) |
| 2 | I bought them in a shop or from a street vendor |
| 3 | It was available at home |
| 4 | I gave someone else money to buy them for me |
| 5 | I borrowed them from someone else |
| 6 | I picked it from somewhere |
| 7 | An older person gave them to me |
| 8 | I got them in some other way |
| Sysmiss |