| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 36 |
6.8%
|
| 1 | January | 29 |
5.5%
|
| 2 | Februray | 40 |
7.6%
|
| 3 | March | 51 |
9.6%
|
| 4 | April | 50 |
9.5%
|
| 5 | May | 48 |
9.1%
|
| 6 | June | 38 |
7.2%
|
| 7 | July | 50 |
9.5%
|
| 8 | August | 49 |
9.3%
|
| 9 | September | 35 |
6.6%
|
| 10 | October | 37 |
7%
|
| 11 | November | 26 |
4.9%
|
| 12 | December | 40 |
7.6%
|
| Sysmiss | 9371 |