| Value | Category | Cases | |
|---|---|---|---|
| -9 | Missing | 0 |
0%
|
| 1 | Std 1 | 3 |
7%
|
| 2 | Std 2 | 24 |
55.8%
|
| 3 | Std 3 | 16 |
37.2%
|
| Sysmiss | 157 |