| Value | Category | Cases | |
|---|---|---|---|
| 1 | I do not smoke every day | 1395 |
75.1%
|
| 2 | 10 years old or younger | 138 |
7.4%
|
| 3 | 11 years old | 118 |
6.4%
|
| 4 | 12 years old | 86 |
4.6%
|
| 5 | 13 years old | 69 |
3.7%
|
| 6 | 14 years old | 31 |
1.7%
|
| 7 | 15 years old | 12 |
0.6%
|
| 8 | 16 years old or older | 8 |
0.4%
|
| Sysmiss | 31 |