| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 3811 |
89.1%
|
| 2 | 7 years old or younger | 105 |
2.5%
|
| 3 | 8 or 9 years old | 28 |
0.7%
|
| 4 | 10 or 11 years old | 18 |
0.4%
|
| 5 | 12 or 13 years old | 111 |
2.6%
|
| 6 | 14 or 15 years old | 160 |
3.7%
|
| 7 | 16 years old or older | 45 |
1.1%
|
| Sysmiss | 23 |