| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 702 |
22.7%
|
| 2 | 7 years old or younger | 340 |
11%
|
| 3 | 8 or 9 years old | 438 |
14.2%
|
| 4 | 10 or 11 years old | 522 |
16.9%
|
| 5 | 12 or 13 years old | 753 |
24.4%
|
| 6 | 14 or 15 years old | 316 |
10.2%
|
| 7 | 16 years old or older | 16 |
0.5%
|
| Sysmiss | 58 |