| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3958 |
78.1%
|
| 2 | 7 years old or younger | 139 |
2.7%
|
| 3 | 8 or 9 years old | 140 |
2.8%
|
| 4 | 10 or 11 years old | 133 |
2.6%
|
| 5 | 12 or 13 years old | 246 |
4.9%
|
| 6 | 14 or 15 years old | 314 |
6.2%
|
| 7 | 16 years old or older | 140 |
2.8%
|
| Sysmiss | 168 |