| Value | Category | Cases | |
|---|---|---|---|
| 1 | March | 257 |
14.2%
|
| 2 | June | 256 |
14.2%
|
| 3 | August | 652 |
36%
|
| 4 | November | 644 |
35.6%
|
| Sysmiss | 2 |