| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 6286 |
54.5%
|
| 2 | 7 years old or younger | 354 |
3.1%
|
| 3 | 8 or 9 years old | 391 |
3.4%
|
| 4 | 10 or 11 years old | 873 |
7.6%
|
| 5 | 12 or 13 years old | 1757 |
15.2%
|
| 6 | 14 or 15 years old | 1481 |
12.8%
|
| 7 | 16 years old or older | 391 |
3.4%
|
| Sysmiss | 52 |