| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never used drugs | 806 |
65.8%
|
| 2 | 7 years old or younger | 90 |
7.4%
|
| 3 | 8 or 9 years old | 54 |
4.4%
|
| 4 | 10 or 11 years old | 40 |
3.3%
|
| 5 | 12 or 13 years old | 67 |
5.5%
|
| 6 | 14 or 15 years old | 104 |
8.5%
|
| 7 | 16 years old or older | 63 |
5.1%
|
| Sysmiss | 197 |