| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never used drugs | 905 |
77.6%
|
| 2 | 7 years old or younger | 40 |
3.4%
|
| 3 | 8 or 9 years old | 29 |
2.5%
|
| 4 | 10 or 11 years old | 53 |
4.5%
|
| 5 | 12 or 13 years old | 89 |
7.6%
|
| 6 | 14 or 15 years old | 50 |
4.3%
|
| 7 | 16 years old or older | 0 |
0%
|
| Sysmiss | 20 |