| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1513 |
47.5%
|
| 2 | 7 years old or younger | 161 |
5.1%
|
| 3 | 8 or 9 years old | 227 |
7.1%
|
| 4 | 10 or 11 years old | 302 |
9.5%
|
| 5 | 12 or 13 years old | 558 |
17.5%
|
| 6 | 14 or 15 years old | 406 |
12.7%
|
| 7 | 16 years old or older | 18 |
0.6%
|
| Sysmiss | 97 |