| Value | Category | Cases | |
|---|---|---|---|
| 1 | January | 5 |
3.8%
|
| 2 | February | 1 |
0.8%
|
| 3 | March | 4 |
3%
|
| 4 | April | 3 |
2.3%
|
| 5 | May | 5 |
3.8%
|
| 6 | June | 0 |
0%
|
| 7 | July | 1 |
0.8%
|
| 8 | August | 25 |
18.9%
|
| 9 | September | 19 |
14.4%
|
| 10 | October | 30 |
22.7%
|
| 11 | November | 23 |
17.4%
|
| 12 | December | 16 |
12.1%
|
| 13 | All year (operated every month) | 0 |
0%
|
| Sysmiss | 1940 |