| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked a cigarette | 10652 |
86.5%
|
| 2 | 7 years old or younger | 589 |
4.8%
|
| 3 | 8 or 9 years old | 296 |
2.4%
|
| 4 | 10 or 11 years old | 218 |
1.8%
|
| 5 | 12 or 13 years old | 288 |
2.3%
|
| 6 | 14 or 15 years old | 201 |
1.6%
|
| 7 | 16 years old or older | 72 |
0.6%
|
| Sysmiss | 342 |