| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 241 |
45.5%
|
| 2 | 7 years old or younger | 16 |
3%
|
| 3 | 8 or 9 years old | 18 |
3.4%
|
| 4 | 10 or 11 years old | 66 |
12.5%
|
| 5 | 12 or 13 years old | 129 |
24.3%
|
| 6 | 14 or 15 years old | 54 |
10.2%
|
| 7 | 16 years old or older | 6 |
1.1%
|
| Sysmiss | 37 |