| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 555 |
74.7%
|
| 2 | 7 years old or younger | 56 |
7.5%
|
| 3 | 8 or 9 years old | 57 |
7.7%
|
| 4 | 10 or 11 years old | 39 |
5.2%
|
| 5 | 12 or 13 years old | 25 |
3.4%
|
| 6 | 14 or 15 years old | 6 |
0.8%
|
| 7 | 16 years old or older | 5 |
0.7%
|
| Sysmiss | 86 |