| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 63 | 
                                                                 
                                    
                                    13.3%
                                 
                                                             | 
                                                        
                    
| 1 | Not a priority relative to other investments | 302 | 
                                                                 
                                    
                                    64%
                                 
                                                             | 
                                                        
                    
| 2 | Not profitable | 27 | 
                                                                 
                                    
                                    5.7%
                                 
                                                             | 
                                                        
                    
| 3 | Lack of financial resources | 46 | 
                                                                 
                                    
                                    9.7%
                                 
                                                             | 
                                                        
                    
| 4 | Uncertainty about regulation | 7 | 
                                                                 
                                    
                                    1.5%
                                 
                                                             | 
                                                        
                    
| 5 | Uncertainty about future prices | 1 | 
                                                                 
                                    
                                    0.2%
                                 
                                                             | 
                                                        
                    
| 6 | Operational and/or technical risk | 3 | 
                                                                 
                                    
                                    0.6%
                                 
                                                             | 
                                                        
                    
| 7 | Other | 23 | 
                                                                 
                                    
                                    4.9%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 109 |