| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2902 |
87.5%
|
| 2 | 7 years old or younger | 97 |
2.9%
|
| 3 | 8 or 9 years old | 88 |
2.7%
|
| 4 | 10 or 11 years old | 84 |
2.5%
|
| 5 | 12 or 13 years old | 78 |
2.4%
|
| 6 | 14 or 15 years old | 47 |
1.4%
|
| 7 | 16 years old or older | 20 |
0.6%
|
| Sysmiss | 142 |