| Value | Category | Cases | |
|---|---|---|---|
| 1 | January | 7 |
2.8%
|
| 2 | February | 12 |
4.8%
|
| 3 | March | 7 |
2.8%
|
| 4 | April | 14 |
5.6%
|
| 5 | May | 60 |
23.8%
|
| 6 | June | 28 |
11.1%
|
| 7 | July | 25 |
9.9%
|
| 8 | August | 29 |
11.5%
|
| 9 | September | 18 |
7.1%
|
| 10 | October | 18 |
7.1%
|
| 11 | November | 16 |
6.3%
|
| 12 | December | 18 |
7.1%
|
| 13 | All year (operated every month) | 0 |
0%
|
| Sysmiss | 1820 |