| Value | Category | Cases | |
|---|---|---|---|
| 1 | September | 153 |
42.7%
|
| 2 | October | 92 |
25.7%
|
| 3 | November | 16 |
4.5%
|
| 4 | December | 0 |
0%
|
| 5 | January | 0 |
0%
|
| 6 | Not return to school | 97 |
27.1%
|
| Sysmiss | 146 |