| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 4349 |
96.4%
|
| 2 | 7 years old or younger | 10 |
0.2%
|
| 3 | 8 or 9 years old | 4 |
0.1%
|
| 4 | 10 or 11 years old | 10 |
0.2%
|
| 5 | 12 or 13 years old | 9 |
0.2%
|
| 6 | 14 or 15 years old | 49 |
1.1%
|
| 7 | 16 years old or older | 80 |
1.8%
|
| Sysmiss | 45 |