| Value | Category | Cases | |
|---|---|---|---|
| 1 | january | 21 | 
                                    
                                    1.4%
                                 | 
| 2 | february | 53 | 
                                    
                                    3.5%
                                 | 
| 3 | march | 134 | 
                                    
                                    9%
                                 | 
| 4 | april | 211 | 
                                    
                                    14.1%
                                 | 
| 5 | may | 269 | 
                                    
                                    18%
                                 | 
| 6 | june | 397 | 
                                    
                                    26.5%
                                 | 
| 7 | july | 266 | 
                                    
                                    17.8%
                                 | 
| 8 | august | 84 | 
                                    
                                    5.6%
                                 | 
| 9 | september | 31 | 
                                    
                                    2.1%
                                 | 
| 10 | october | 8 | 
                                    
                                    0.5%
                                 | 
| 11 | november | 6 | 
                                    
                                    0.4%
                                 | 
| 12 | december | 16 | 
                                    
                                    1.1%
                                 | 
| Sysmiss | 518 |