| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 380 |
24.5%
|
| 2 | 7 years old or younger | 180 |
11.6%
|
| 3 | 8 or 9 years old | 172 |
11.1%
|
| 4 | 10 or 11 years old | 223 |
14.4%
|
| 5 | 12 or 13 years old | 388 |
25%
|
| 6 | 14 or 15 years old | 200 |
12.9%
|
| 7 | 16 years old or older | 7 |
0.5%
|
| Sysmiss | 47 |