| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 1571 |
41.5%
|
| 2 | 5 years old or younger | 51 |
1.3%
|
| 3 | 6 or 7 years old | 138 |
3.6%
|
| 4 | 8 or 9 years old | 234 |
6.2%
|
| 5 | 10 or 11 years old | 481 |
12.7%
|
| 6 | 12 or 13 years old | 931 |
24.6%
|
| 7 | 14 or 15 years old | 367 |
9.7%
|
| 8 | 16 years old or older | 12 |
0.3%
|
| Sysmiss | 76 |