| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 505 |
46.5%
|
| 2 | 7 years old or younger | 50 |
4.6%
|
| 3 | 8 or 9 years old | 57 |
5.2%
|
| 4 | 10 or 11 years old | 113 |
10.4%
|
| 5 | 12 or 13 years old | 225 |
20.7%
|
| 6 | 14 or 15 years old | 119 |
10.9%
|
| 7 | 16 years old or older | 18 |
1.7%
|
| Sysmiss | 39 |