| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2040 |
63.4%
|
| 2 | 7 years old or younger | 91 |
2.8%
|
| 3 | 8 or 9 years old | 96 |
3%
|
| 4 | 10 or 11 years old | 161 |
5%
|
| 5 | 12 or 13 years old | 305 |
9.5%
|
| 6 | 14 or 15 years old | 421 |
13.1%
|
| 7 | 16 years old or older | 104 |
3.2%
|
| Sysmiss | 155 |