| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 304 |
54.6%
|
| 2 | 7 years old or younger | 27 |
4.8%
|
| 3 | 8 or 9 years old | 47 |
8.4%
|
| 4 | 10 or 11 years old | 85 |
15.3%
|
| 5 | 12 or 13 years old | 59 |
10.6%
|
| 6 | 14 or 15 years old | 29 |
5.2%
|
| 7 | 16 years old or older | 6 |
1.1%
|
| Sysmiss | 83 |