| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 490 |
31.7%
|
| 2 | 7 years old or younger | 99 |
6.4%
|
| 3 | 8 or 9 years old | 182 |
11.8%
|
| 4 | 10 or 11 years old | 204 |
13.2%
|
| 5 | 12 or 13 years old | 360 |
23.3%
|
| 6 | 14 or 15 years old | 209 |
13.5%
|
| 7 | 16 years old or older | 4 |
0.3%
|
| Sysmiss | 46 |