| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1927 |
90.2%
|
| 2 | 7 years old or younger | 27 |
1.3%
|
| 3 | 8 or 9 years old | 15 |
0.7%
|
| 4 | 10 or 11 years old | 52 |
2.4%
|
| 5 | 12 or 13 years old | 50 |
2.3%
|
| 6 | 14 or 15 years old | 57 |
2.7%
|
| 7 | 16 years old or older | 9 |
0.4%
|
| Sysmiss | 60 |