| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 620 |
55.6%
|
| 2 | 7 years old or younger | 18 |
1.6%
|
| 3 | 8 or 9 years old | 33 |
3%
|
| 4 | 10 or 11 years old | 83 |
7.4%
|
| 5 | 12 or 13 years old | 277 |
24.8%
|
| 6 | 14 or 15 years old | 80 |
7.2%
|
| 7 | 16 years old or older | 4 |
0.4%
|
| Sysmiss | 22 |