| Value | Category | Cases | |
|---|---|---|---|
| 1 | Time restrictions | 14 | 
                                                                 
                                    
                                    19.7%
                                 
                                                             | 
                                                        
                    
| 2 | Limitations of number of users at a given time | 2 | 
                                                                 
                                    
                                    2.8%
                                 
                                                             | 
                                                        
                    
| 3 | Rotation among groups of families | 4 | 
                                                                 
                                    
                                    5.6%
                                 
                                                             | 
                                                        
                    
| 4 | No restrictions | 46 | 
                                                                 
                                    
                                    64.8%
                                 
                                                             | 
                                                        
                    
| 5 | Other (Specify) | 5 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 439 |