| Value | Category | Cases | |
|---|---|---|---|
| 1 | January | 2606 |
1.4%
|
| 2 | February | 2301 |
1.3%
|
| 3 | March | 2557 |
1.4%
|
| 4 | April | 2146 |
1.2%
|
| 5 | May | 1836 |
1%
|
| 6 | June | 7536 |
4.2%
|
| 7 | July | 1866 |
1%
|
| 8 | August | 1952 |
1.1%
|
| 9 | September | 2355 |
1.3%
|
| 10 | October | 2065 |
1.1%
|
| 11 | November | 1984 |
1.1%
|
| 12 | December | 2182 |
1.2%
|
| 98 | Unknown | 0 |
0%
|
| 99 | NIU (not in universe) | 148822 |
82.6%
|