| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 970 |
84.1%
|
| 2 | 7 years old or younger | 25 |
2.2%
|
| 3 | 8 or 9 years old | 15 |
1.3%
|
| 4 | 10 or 11 years old | 21 |
1.8%
|
| 5 | 12 or 13 years old | 31 |
2.7%
|
| 6 | 14 or 15 years old | 54 |
4.7%
|
| 7 | 16 years old or older | 37 |
3.2%
|
| Sysmiss | 205 |