| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2197 |
62.2%
|
| 2 | Less than 8 years | 80 |
2.3%
|
| 3 | 8 or 9 years old | 96 |
2.7%
|
| 4 | 10 or 11 years old | 213 |
6%
|
| 5 | 12 or 13 years old | 447 |
12.7%
|
| 6 | 14 or 15 years old | 374 |
10.6%
|
| 7 | More than 15 years | 123 |
3.5%
|
| Sysmiss | 18 |