| Value | Category | Cases | |
|---|---|---|---|
| 1 | I never smoke | 2117 |
86.5%
|
| 2 | At home | 135 |
5.5%
|
| 3 | At school | 25 |
1%
|
| 4 | At working place | 29 |
1.2%
|
| 5 | At friends house | 55 |
2.2%
|
| 6 | Social events | 44 |
1.8%
|
| 7 | At public places (e.g public parks, shopping center, street corner, entertainment places….) | 2 |
0.1%
|
| 8 | Others | 39 |
1.6%
|
| Sysmiss | 12 |