| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1337 |
40.2%
|
| 2 | 7 years old or younger | 271 |
8.1%
|
| 3 | 8 or 9 years old | 316 |
9.5%
|
| 4 | 10 or 11 years old | 486 |
14.6%
|
| 5 | 12 or 13 years old | 674 |
20.3%
|
| 6 | 14 or 15 years old | 241 |
7.2%
|
| 7 | 16 years old or older | 3 |
0.1%
|
| Sysmiss | 85 |