| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked | 1995 |
84.9%
|
| 2 | 7 years old at least | 82 |
3.5%
|
| 3 | 8 or 9 years old | 37 |
1.6%
|
| 4 | 10 or 11 years old | 57 |
2.4%
|
| 5 | 12 or 13 years old | 70 |
3%
|
| 6 | 14 or 15 years old | 73 |
3.1%
|
| 7 | at least 16 years old | 35 |
1.5%
|
| Sysmiss | 37 |