| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never used tobacco | 4930 |
80.5%
|
| 2 | 7 years old or younger | 250 |
4.1%
|
| 3 | 8 or 9 years old | 134 |
2.2%
|
| 4 | 10 or 11 years old | 209 |
3.4%
|
| 5 | 12 or 13 years old | 288 |
4.7%
|
| 6 | 14 or 15 years old | 200 |
3.3%
|
| 7 | 16 years old or older | 112 |
1.8%
|
| Sysmiss | 37 |