| Value | Category | Cases | |
|---|---|---|---|
| 1 | Alone | 128 |
6.5%
|
| 2 | Without anyone's knowledge | 93 |
4.7%
|
| 3 | In front of your parents | 9 |
0.5%
|
| 4 | With friends | 252 |
12.7%
|
| 5 | With your classmates | 29 |
1.5%
|
| 6 | I don't smoke | 1471 |
74.2%
|
| Sysmiss | 35 |