| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2500 |
63.5%
|
| 2 | 7 years old or younger | 137 |
3.5%
|
| 3 | 8 or 9 years old | 146 |
3.7%
|
| 4 | 10 or 11 years old | 217 |
5.5%
|
| 5 | 12 or 13 years old | 512 |
13%
|
| 6 | 14 or 15 years old | 416 |
10.6%
|
| 7 | 16 years old or older | 12 |
0.3%
|
| Sysmiss | 243 |