| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 7510 |
90.5%
|
| 2 | 7 years old or younger | 83 |
1%
|
| 3 | 8 or 9 years old | 78 |
0.9%
|
| 4 | 10 or 11 years old | 121 |
1.5%
|
| 5 | 12 or 13 years old | 151 |
1.8%
|
| 6 | 14 or 15 years old | 166 |
2%
|
| 7 | 16 years old or older | 189 |
2.3%
|
| Sysmiss | 227 |