| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 2678 |
56.7%
|
| 2 | 7 years or younger | 554 |
11.7%
|
| 3 | 8 or 9 years old | 302 |
6.4%
|
| 4 | 10 or 11 years old | 320 |
6.8%
|
| 5 | 12 or 13 years old | 446 |
9.4%
|
| 6 | 14 or 15 years old | 390 |
8.3%
|
| 7 | 16 years old or older | 31 |
0.7%
|
| Sysmiss | 309 |