| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2553 |
66.5%
|
| 2 | 7 years old or younger | 65 |
1.7%
|
| 3 | 8 or 9 years old | 62 |
1.6%
|
| 4 | 10 or 11 years old | 219 |
5.7%
|
| 5 | 12 or 13 years old | 555 |
14.5%
|
| 6 | 14 or 15 years old | 373 |
9.7%
|
| 7 | 16 years old or older | 11 |
0.3%
|
| Sysmiss | 147 |