| Value | Category | Cases | |
|---|---|---|---|
| 0 | less than a month | 37 | 
                                                                 
                                    
                                    27.6%
                                 
                                                             | 
                                                        
                    
| 1 | 4 | 
                                                                 
                                    
                                    3%
                                 
                                                             | 
                                                        
                    |
| 3 | 2 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 4 | 3 | 
                                                                 
                                    
                                    2.2%
                                 
                                                             | 
                                                        
                    |
| 5 | 2 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 6 | 6 | 
                                                                 
                                    
                                    4.5%
                                 
                                                             | 
                                                        
                    |
| 10 | 6 | 
                                                                 
                                    
                                    4.5%
                                 
                                                             | 
                                                        
                    |
| 12 | 18 | 
                                                                 
                                    
                                    13.4%
                                 
                                                             | 
                                                        
                    |
| 15 | 2 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 16 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 18 | 6 | 
                                                                 
                                    
                                    4.5%
                                 
                                                             | 
                                                        
                    |
| 24 | 11 | 
                                                                 
                                    
                                    8.2%
                                 
                                                             | 
                                                        
                    |
| 25 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 30 | 2 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 36 | 13 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             | 
                                                        
                    |
| 48 | 2 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 60 | 12 | 
                                                                 
                                    
                                    9%
                                 
                                                             | 
                                                        
                    |
| 72 | 2 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 84 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| 100 | 2 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    |
| 120 | 1 | 
                                                                 
                                    
                                    0.7%
                                 
                                                             | 
                                                        
                    |
| Sysmiss | 4824 |