| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked a cigarette | 3372 |
89.8%
|
| 2 | 7 years old or younger | 74 |
2%
|
| 3 | 8 or 9 years old | 38 |
1%
|
| 4 | 10 or 11 years old | 48 |
1.3%
|
| 5 | 12 or 13 years old | 87 |
2.3%
|
| 6 | 14 or 15 years old | 100 |
2.7%
|
| 7 | 16 years old or older | 37 |
1%
|
| Sysmiss | 36 |