| Value | Category | Cases | |
|---|---|---|---|
| 1 | January | 4 |
9.3%
|
| 2 | February | 2 |
4.7%
|
| 3 | March | 3 |
7%
|
| 4 | April | 4 |
9.3%
|
| 5 | May | 4 |
9.3%
|
| 6 | June | 1 |
2.3%
|
| 7 | July | 1 |
2.3%
|
| 8 | August | 2 |
4.7%
|
| 9 | September | 1 |
2.3%
|
| 10 | October | 2 |
4.7%
|
| 11 | November | 0 |
0%
|
| 12 | December | 0 |
0%
|
| 97 | Don't know | 19 |
44.2%
|
| Sysmiss | 4501 |