| Value | Category | 
                                    
                    
                        | 1 | Volunteer | 
                                    
                    
                        | 2 | Community slection | 
                                    
                    
                        | 3 | Project Manager outside community | 
                                    
                    
                        | 4 | Government, recipient List | 
                                    
                    
                        | 5 | Association Membership List | 
                                    
                    
                        | 6 | other | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.