| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never smoked cigarettes | 644 |
49.6%
|
| 2 | 10 years old or younger | 100 |
7.7%
|
| 3 | 11 years old | 81 |
6.2%
|
| 4 | 12 years old | 130 |
10%
|
| 5 | 13 years old | 169 |
13%
|
| 6 | 14 years old | 114 |
8.8%
|
| 7 | 15 years old | 52 |
4%
|
| 8 | 16 years old or older | 8 |
0.6%
|
| Sysmiss | 70 |