| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't Know (Spontaneous) | 13 | 
                                                                 
                                    
                                    7%
                                 
                                                             | 
                                                        
                    
| 1 | Standard for total energy use | 135 | 
                                                                 
                                    
                                    73%
                                 
                                                             | 
                                                        
                    
| 2 | Standard for energy use relative to output | 35 | 
                                                                 
                                    
                                    18.9%
                                 
                                                             | 
                                                        
                    
| 3 | Standard for energy use relative to other parameters | 2 | 
                                                                 
                                    
                                    1.1%
                                 
                                                             | 
                                                        
                    
| Sysmiss | 396 |