| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2470 |
54.4%
|
| 2 | 7 years old or younger | 73 |
1.6%
|
| 3 | 8 or 9 years old | 131 |
2.9%
|
| 4 | 10 or 11 years old | 347 |
7.6%
|
| 5 | 12 or 13 years old | 960 |
21.1%
|
| 6 | 14 or 15 years old | 507 |
11.2%
|
| 7 | 16 years old or older | 52 |
1.1%
|
| Sysmiss | 83 |