| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4141 |
90.2%
|
| 2 | 7 years old or younger | 48 |
1%
|
| 3 | 8 or 9 years old | 41 |
0.9%
|
| 4 | 10 or 11 years old | 59 |
1.3%
|
| 5 | 12 or 13 years old | 171 |
3.7%
|
| 6 | 14 or 15 years old | 125 |
2.7%
|
| 7 | 16 years old or older | 5 |
0.1%
|
| Sysmiss | 108 |