| Value | Category | Cases | |
|---|---|---|---|
| 1 | I have never used drugs | 1250 |
79.5%
|
| 2 | 7 years old or younger | 67 |
4.3%
|
| 3 | 8 or 9 years old | 43 |
2.7%
|
| 4 | 10 or 11 years old | 51 |
3.2%
|
| 5 | 12 or 13 years old | 89 |
5.7%
|
| 6 | 14 or 15 years old | 62 |
3.9%
|
| 7 | 16 years old or older | 10 |
0.6%
|
| Sysmiss | 57 |