| Value | Category | Cases | |
|---|---|---|---|
| 1 | January | 13 | 
                                    
                                    2.2%
                                 | 
| 2 | February | 1 | 
                                    
                                    0.2%
                                 | 
| 3 | March | 3 | 
                                    
                                    0.5%
                                 | 
| 4 | April | 6 | 
                                    
                                    1%
                                 | 
| 5 | May | 6 | 
                                    
                                    1%
                                 | 
| 6 | June | 329 | 
                                    
                                    56.8%
                                 | 
| 7 | July | 71 | 
                                    
                                    12.3%
                                 | 
| 8 | August | 24 | 
                                    
                                    4.1%
                                 | 
| 9 | September | 6 | 
                                    
                                    1%
                                 | 
| 10 | October | 13 | 
                                    
                                    2.2%
                                 | 
| 11 | November | 11 | 
                                    
                                    1.9%
                                 | 
| 12 | December | 3 | 
                                    
                                    0.5%
                                 | 
| 98 | Don't remember the month | 93 | 
                                    
                                    16.1%
                                 | 
| 99 | Don't remember | 0 | 
                                    
                                    0%
                                 | 
| Sysmiss | 222 |