| Value | Category | Cases | |
|---|---|---|---|
| 0 | Not given | 136 |
10.1%
|
| 1 | January | 84 |
6.2%
|
| 2 | February | 71 |
5.3%
|
| 3 | March | 67 |
5%
|
| 4 | April | 76 |
5.6%
|
| 5 | May | 85 |
6.3%
|
| 6 | June | 64 |
4.7%
|
| 7 | July | 65 |
4.8%
|
| 8 | August | 79 |
5.8%
|
| 9 | September | 57 |
4.2%
|
| 10 | October | 65 |
4.8%
|
| 11 | November | 72 |
5.3%
|
| 12 | December | 65 |
4.8%
|
| 44 | Marked on card | 21 |
1.6%
|
| Sysmiss | 344 |
25.5%
|