| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 800 |
24.5%
|
| 2 | 7 years old or younger | 402 |
12.3%
|
| 3 | 8 or 9 years old | 404 |
12.4%
|
| 4 | 10 or 11 years old | 488 |
15%
|
| 5 | 12 or 13 years old | 811 |
24.8%
|
| 6 | 14 or 15 years old | 344 |
10.5%
|
| 7 | 16 years old or older | 15 |
0.5%
|
| Sysmiss | 98 |