| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 922 |
54.8%
|
| 2 | 7 years old or younger | 47 |
2.8%
|
| 3 | 8 or 9 years old | 77 |
4.6%
|
| 4 | 10 or 11 years old | 184 |
10.9%
|
| 5 | 12 or 13 years old | 313 |
18.6%
|
| 6 | 14 or 15 years old | 123 |
7.3%
|
| 7 | 16 years old or older | 15 |
0.9%
|
| Sysmiss | 176 |